Pop Quiz: Are You Jennifer Aniston's Biggest Fan?

Her hookups! Her style! Her Friends! As she turns 40, test your knowledge of the superstar!

Q: 1 of 10

Correct Answer: Rolling Stone

In 1996, Aniston got cheeky, showing off her tan lines – and then some! – on the March 7 cover of Rolling Stone. She also appeared on the cover of GQ in December 2005, in nothing but jean shorts.