Jennifer Lopez and Casper Smart Get Catty on Dubsmash

Jennifer Lopez shared a hilarious Dubsmash video on Instagram on Tuesday. Jennifer, who is reportedly dating her on-again, off-again boyfriend Casper Smart, is shown acting out a scene from Wedding Crashers with him in the funny clip, saying, "Call me Kitty Kat." Nowadays it seems like every star is making a Dubsmash. Most recently, Tina Fey stopped by Late Night With Seth Meyers on Tuesday and ended up dropping one of the best Dubsmash videos ever featuring Maya Rudolph. Watch Jennifer's comical acting skills above, and then check out 15 celebrities who are loving the popular app.