By Gena Oppenheim with reporting by Heather Newgen and Cristina Gibson
Ever wonder what stars like to do for fun when they're not on set? Well, Sarah Michelle Gellar, Joe Jonas, Kathy Griffin and more told Wonderwall all about their secret hobbies. Click through to find out what interesting pastimes celebs partake in behind closed doors. Their answers are sure to surprise you!
"One of my hobbies is boxing. It's my hobby -- I don't do it for work. It's something that I love to do. I love the sport because you always learn something new, and I love the workout because you don't need machines. I love to watch boxing fights on TV, and I'm a big fan of Manny Pacquiao." --Adriana Lima