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Nicki Minaj    - The rap star is the face for the 2012 MAC Cosmetics VIVA GLAM campaign alongside Latin singer Ricky Martin. (Photo: Mike Coppola/Getty Images for Mercedes-Benz Fashion Week)

Photo By Photo: Mike Coppola/Get

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Magic Johnson - 21 years ago, NBA star Earvin "Magic" Johnson bravely announced that he'd tested positive for HIV and then retired from the NBA. Since then he's fought for HIV/AIDS awareness through his Magic Johnson Foundation and has opened several treatment clinics with the AIDS Healthcare Foundation. (Photo: Kevin Winter/NBCUniversal/Getty Images)

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Alicia Keys - Alicia Keys is co-founder and global ambassador of Keep a Child Alive, which provides treatment and support to families affected by HIV/AIDS. In addition, she had been a big supporter of the (RED) campaign. (Photo: Bennett Raglin/WireImage)

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Lady Gaga - The pop star was chosen to be the spokesperson for MAC's VIVA GLAM campaign in 2010 to raise money for the MAC AIDS Fund. She continued to work with the campaign for a second year by promoting self-empowerment, testing, and the use of protection to fight the spread of HIV/AIDS. She also released a new shade for the MAC VIVA GLAM Lipstick and Lipglass called Gaga 2. (Photo: Andrew H. Walker/Getty Images)

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Danny Glover - The actor, whose brother has been living with HIV/AIDS for the past 22 years, serves as a board member for the Black AIDS Institute, which strives to stop the spread of AIDS within the black community. He also works as a UNICEF ambassador and a global ambassador for the United Nations Development Program supporting programs that encourage HIV testing and education. (Photo: Henry S. Dziekan III/Getty Images)

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Vanessa Williams - Vanessa Willams is also a board member for the Black AIDS Institute. Along with interpreting public and private policies for the black community, the organization also mobilizes black institutions and individuals, conducts trainings, and spreads information about the disease. (Photo: Frederick M. Brown/Getty Images)

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John Legend - In September, the singer performed at the fundraising event Cinema Against AIDS Toronto to benefit amfAR, The Foundation for AIDS Research, during the Toronto International Film Festival. His song "If You're Out There" is one that serves as encouragement to learn more about the HIV/AIDS pandemic. (Photo: Jason Kempin/Getty Images)

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Sheryl Lee Ralph - The actress serves on the board for the Black AIDS Institute, created The Diva Foundation to spread AIDS awareness through music and entertainment, and was the recipient of the first Red Ribbon Leadership Award from the United Nations on World AIDS Day in 2005. (Photo: David Livingston/Getty Images)

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Whoopi Goldberg - As a Goodwill Ambassador for UNICEF, Whoopi Goldberg helps "ease the burden of HIV/AIDS on children and their communities around the world" by doing PSAs and participating in fundraising events in support of the United Against AIDS campaign. (Photo: Amy Sussman/Getty Images)

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Nelson Mandela - The civil rights activist and former president of South Africa created the non-profit 46664 (named after Nelson Mandela's prison cell number) to raise funds to fight HIV/AIDS. (Photo: Michael Kooren/REUTERS)