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Lady Gaga Lady Gaga, born Stefani Germanotta, is an American singer and songwriter known for her unique fashion sense and powerful voice. She rose to fame in the late 2000s with hits such as "Poker Face" and "Bad Romance". Lady Gaga has won multiple Grammy Awards and has been praised for her activism and support of the LGBTQ+ community. 2. Jamie Foxx Jamie Foxx, born Eric Marlon Bishop, is an American actor, comedian, and singer. He won an Academy Award for his portrayal of Ray Charles in the 2004 biopic "Ray". Foxx has also released multiple albums, with his most successful being "Unpredictable". 3. Portia de Rossi Portia de Rossi, born Amanda Lee Rogers, is an Australian actress known for her roles in "Ally McBeal" and "Arrested Development". She is also the wife of famous talk show host, Ellen DeGeneres. De Rossi legally changed her name at the age of 15 to distance herself from her troubled childhood. 4. Miley Cyrus Miley Cyrus, born Destiny Hope Cyrus, is an American singer and actress. She rose to fame as the star of the Disney Channel series "Hannah Montana" and has since become known for her controversial behavior and unique sense of style. 5. Nicolas Cage Nicolas Cage, born Nicolas Kim Coppola, is an American actor known for his roles in "Leaving Las Vegas" and "National Treasure". He is the nephew of famed director, Francis Ford Coppola, but changed his name to avoid accusations of nepotism in the film industry. 6. Elton John Elton John, born Reginald Kenneth Dwight, is an English singer, songwriter, and pianist. He has sold over 300 million records and is known for his flamboyant style on and off stage. John legally changed his name in 1972 to create his stage persona. 7. Katy Perry Katy Perry, born Katheryn Elizabeth Hudson, is an American singer and songwriter. She is known for hits such as "I Kissed a Girl" and "Firework". Perry changed her name to avoid confusion with actress Kate Hudson. 8. Demi Moore Demi Moore, born Demetria Gene Guynes, is an American actress known for her roles in films such as "Ghost" and "Indecent Proposal". She legally changed her name after marrying musician Freddy Moore at the age of 18. 9. Whoopi Goldberg Whoopi Goldberg, born Caryn Elaine Johnson, is an American actress, comedian, and television host. She is one of only 16 individuals to have won an Emmy, Grammy, Oscar, and Tony Award. Goldberg changed her name to reflect her humorous and larger than life personality. 10. Emma Stone Emma Stone, born Emily Jean Stone, is an American actress known for her roles in films such as "La La Land" and "Easy A". She legally changed her name after discovering that there was already an Emily Stone registered with the Screen Actors Guild.