Lesley Sue Goldstein, better known with her family’s adopted surname as Lesley Gore, was an American singer and songwriter. At the age of 16, she recorded her first hit song "It's My Party", a US number one in 1963. She followed it up with ten further US Billboard top 40 hits including "Judy's Turn to Cry" and "You Don't Own Me". Gore said she considered "You Don't Own Me" her signature song.

"It's My Party" is a song by American singer-songwriter Lesley Gore from her debut studio album I'll Cry If I Want To (1963). It was released as the lead single from the album on April 5, 1963, by Mercury Records. The song was collectively written by Herb Wiener, John Gluck Jr., and Wally Gold, while production was helmed by Quincy Jones.