"Good Morning America" host Robin Roberts has beat cancer not once but twice! Only five years after conquering breast cancer, she announced that she had been diagnosed with a rare bone marrow disorder named myelodysplastic syndrome. With the gift of a transplant from her sister Sally-Ann, she was able to recover and deliver her message of empowerment to others. Every year since 2013, she celebrates the day she was told that she was finally cancer-free.

Robert de Niro always plays the tough guy in his films, and his 2003 prostate cancer diagnosis didn't cause him to back down at all. Though he rarely speaks about his battle, his doctors credit early diagnosis for saving his life. One in nine American men will be diagnosed with the condition during their lifetimes. The same routine screening that saved de Niro's life could also save yours!

Jimmy Carter has worn a lot of hats in his life. The former U.S. president has been a father, an author and a home-building philanthropist. He's also a cancer survivor! In 2015, doctors discovered that melanoma — a type of skin cancer — had spread to his brain and his liver. Convinced that he had only a few weeks to live, he headed back to the job site. While he worked, doctors came up with a plan to treat him with immunotherapy. After only six months of treatment, he announced a full remission.

The "T" in Mr. T doesn't stand for tough, but that's what he is! Born Leon Tureaud, he once overcame a cancerous tumor on his ear, but his biggest battle came later when he was diagnosed with T-cell lymphoma. Not one to back down from a challenge, he went into complete remission after chemotherapy sessions. He doesn't credit it with saving his life, though. He saves that honor for the strict chicken-and-peanut-butter-sandwich diet he put himself on during treatment.

Appointed to the Supreme Court by President Bill Clinton in 1993, Ruth Bader Ginsburg has a reputation for being one of the toughest lawmakers in the country. Overcoming lung cancer while remaining on the job was quite a feat. But she had yet another fight to fight. She's recently amazed the world again by announcing that she is officially a four-time cancer survivor! At the age of 86, she has conquered pancreatic cancer, too.

Nearly 12 years ago, Sheryl Crow was on top of the world! With a string of hit songs under her belt, she seemed invincible to her fans. When a routine breast exam revealed a cancerous lump, she used her celebrity status to urge them to be tested. Because her DCIS (ductal carcinoma in situ) was discovered early, a lumpectomy and a 7-week course of radiation were able to cure it. She still urges fans to "see your doctor and be proactive about your health."

Fans might know Christina Applegate best for her roles in "Married ... With Children" or "Dead to Me," but she's also a cancer surviving warrior. In 2008, she was diagnosed with the sort of breast cancer associated with the BRCA gene. After a double mastectomy, ovarian removal and fallopian tube extraction, she is now free of the disease. Now the founder and director of Right Action for Women, she helps to provide the expensive preventative testing needed to save women's lives.

Australian born Hugh Jackman may be nearly invincible as Wolverine, but nothing is more powerful than the sun. As a two-time survivor of basal cell carcinoma — once in 2013 and once in 2017 — he often speaks about the importance of protecting yourself from the sun's harmful UV rays. Every year, nearly four million Americans are diagnosed with the same condition more commonly known as skin cancer.

While filming "Dexter," Michael C. Hall was also fighting the biggest fight of his life. In 2010, the native North Carolinian actor was diagnosed with Hodgkin's lymphoma — a form of cancer that originates in the immune system. Unlike other celebrities, he didn't shy away from the spotlight while he was undergoing chemotherapy. In fact, he took to the red carpet wearing a cap that covered his hair loss. Dexter might have a lot of fearlessness, but the actor playing him beats him hands down.

Comedienne and actress Wanda Sykes had planned to undergo breast reduction surgery in 2011, but pre-surgery tests revealed that she was suffering from ductal carcinoma in situ (DCIS). Like many of the one in eight people who develop the same type of breast cancer, she opted for a double mastectomy in addition to chemotherapy. She's been free from cancer since 2012, but she remains open about it. She says she's grateful for early detection and urges others to attend their annual checkups.

For two whole years, Rod Stewart managed to keep his battle with prostate cancer private. While playing a fundraising event for the Prostate Project in 2019, he finally revealed his battle. Like Robert De Niro, his cancer was discovered during a routine annual exam. Now fully recovered, he had a special message for his fans. "Guys, you've got to go to the doctor ... finger up the bum, no harm done."

Ben Stiller is one of Hollywood's favorite funny guys, but his 2016 battle with prostate cancer saw him getting serious with fans. Unlike Rod Stewart, his cancer was discovered using a blood test. Instead of undergoing chemotherapy, he opted to have his entire prostate removed. During an interview with Howard Stern, he stepped back into his role as a comedian when he jokingly admitted that he was only concerned with the sexual side effects. Then, more seriously, he advised fans to be tested.

In the United States, colon cancer is the third biggest cause of death. When everyone's favorite mom, Sharon Osbourne, was diagnosed in 2002, she didn't let it get to her at all. Instead, she let the cameras continue to roll on the set of "The Osbournes" while she recovered from surgery and chemotherapy sessions. Although she was declared cancer-free, she opted for a double mastectomy in 2012 after testing positive for the BRCA gene.

In 2016, champion cyclist Lance Armstrong was experiencing strange symptoms like a swollen testicle and coughing up blood. A visit to the urologist showed that he was suffering from embryonal carcinoma — a type of testicular cancer. Because it had spread to his liver and his brain, he needed to undergo intensive chemotherapy and multiple surgeries. Not one to give up on a challenge, the athlete completed treatment without a hitch and returned to the circuit after making a full recovery.

Olivia Newton-John's cult following was shocked to learn of her 1993 breast cancer diagnosis and the two subsequent battles she's faced. The singer and actress — most famous for her work as Sandy in "Grease" — has risen above cancer to start her own foundation. The Olivia Newton-John Wellness Research Centre in Melbourne works to raise awareness about the importance of natural medicines and prevention. In 2019, she even auctioned off Sandy's jacket to help provide care for those in need.

In 2001, Mark Ruffalo was awakened from a dream that terrified him enough to go to the doctor. Testing revealed that his dream was accurate — there was, in fact, a tumor growing in his brain! Called acoustic neuroma, the tumor was immediately removed, and he set out on a journey of rehabilitative therapy. Before becoming "The Incredible Hulk," he had to learn how to walk with a steady gait again.

"E! News" host Giuliana Rancic was always public about her fertility battle, but she was knocked off her feet when she received a breast cancer diagnosis. Prior to receiving in-vitro fertilization in 2011, she was required to have a mammogram. Much to her disbelief, a small cluster of cancer cells was discovered. After rounds of chemotherapy and surgery to remove it, she was declared cancer-free. Only a couple of years later, she welcomed her son Duke into the world.

Singer/songwriter Melissa Etheridge always held one of the most common beliefs about cancer. Despite having several family members suffer from the disease, she never thought it would happen to her. When a 2005 mammogram revealed a lump, she was in shock! She often says that the surgery and five rounds of chemo and radiation have changed her life. At every opportunity, she conveys the importance of healthy living and early screening. She's been an inspiration to many!

Actress and exercise guru Suzanne Summers underwent a lumpectomy and radiation after being diagnosed with breast cancer in 1999. Opting for an alternative treatment, she began to speak publicly about taking a medication called Iscador — a mistletoe extract. In addition to becoming an author, she has also become a spokesperson for healthy living. Now age 73, she's still going strong!

While graciously serving as First Lady, Nancy Reagan was undergoing a very personal battle. A routine mammogram in 1987 showed a lump in her breast. At the age of 66, she underwent a procedure called a radical mastectomy that stopped her cancer dead in its tracks. She went on to live a healthy and cancer-free life until her passing in 2016, making her a 29-year survivor.

"Today Show" host Hoda Kotb was diagnosed with breast cancer after her doctor found lumps during an annual exam. Luckily, the cancer had not spread to any of her lymph nodes, and she was able to defeat the disease with a mastectomy. Instead of undergoing chemotherapy, she opted for a five-year treatment plan that included the drug tamoxifen. She's been declared a survivor since 2007!

Fans of "Sex in the City" followed along as the show tackled breast cancer, but no one expected one of the show's stars to face the same battle. When Cynthia Nixon was diagnosed in 2007, she did her best to keep it under wraps. As a child, she watched her mother overcome the disease, and she wanted to fight cancer in private. Once the lump was removed and she underwent nearly seven weeks of radiation treatment, she used her experience to become the spokesperson for the Susan G. Komen Foundation.

Best known for her role on "ER," Maura Tierney's battle with breast cancer has inspired her to help others. In 2008, she attended a routine annual exam, where her doctors discovered lumps. Since it was caught early, she was able to eradicate it with a mastectomy and chemotherapy. She often says that she was far more scared of the therapy than cancer. Much to her surprise, it was more bearable than she had imagined. Now, she speaks out about the benefits of the therapy.

Kylie Minogue was in the middle of a huge comeback in 2005 when she was diagnosed with breast cancer. After months of chemotherapy, she was declared cancer-free and cleared to get back on the stage. But she didn't return to public life as she was before. Instead, she began to work hand-in-hand with cancer charities, and she continues to work with them today. You can still catch her in special appearances, though.

Renowned therapist and talk show host Dr. Drew Pinsky was feeling constantly under the weather in 2013. At the urging of his wife, he went to the doctor for a checkup. There, they discovered that he was suffering from prostate cancer. Surgery was immediately scheduled, and the organ was removed. Even though he went back to work only two weeks later, he says that without the surgery, he certainly would have perished from the disease. He now urges all of his fans to seek regular testing.

When Jane Fonda was diagnosed with breast cancer in 2016, she was shocked! As someone who had dedicated a lot of her life to health and fitness, she never expected the diagnosis. Shortly after a double mastectomy, she attended the Golden Globes designed to conceal her bandages. But she made a point to express the importance of early screenings. Since then, she has had several skin cancer growths removed, but at 81-years-old, she simply keeps going.

One morning on the set of "The Sopranos," Edie Falco got a call that changed her life — she had tested positive for an invasive form of breast cancer. After a year, she announced that chemotherapy treatments were effective, and she went right back to work. She's been cancer-free 2004, but she is still a vocal advocate for affordable screenings. Since then, she's fulfilled a life's dream and become a mother by adopting two children.