Everybody's doing it, and by "it" we mean sex.
Except these celebrities who were virgins until marriage, or who are still holding out for that magical moment.
Bet you didn't know about some of them ...
Carrie Underwood told Slate magazine in 2007 that she was saving herself until marriage. She did just that, until Mike Fisher put a ring on it and they exchanged vows.
"I'm not trying to preach consequences here, but I think when you say no, down the line, it will be a better decision." - Julianne Hough, actress and Dancing with the Stars pro
Jordin Sparks is still saving herself for marriage, she says, even if photos of herself with former fiance Jason Derulo in bed called that into question.
While his brothers may have eaten the forbidden fruit, Kevin Jonas was a virgin until marrying his wife, Danielle.
Former football standout and devout Christian Tim Tebow is quite open and quite famously known for his proclamations that he's a virgin.
Hilary Duff was a virgin until marrying Mike Comrie. The two separated in early 2014, and again in 2015, so we wonder how she feels about the single life right now.