When your 30-something best friend turns 17 again, hilarious things are bound to happen. Check out some of the funniest moments from 17 Again, starring Zac Efron, Thomas Lennon, Matthew Perry, and Leslie Mann. Watch 17 Again on TBS. #TBS #17Again #ZacEfron #ThomasLennon #MatthewPerry #LeslieMann SUBSCRIBE: bit.ly/TBSSub Download the TBS App: bit.ly/1qBbkMW About TBS: The home of Friends, Young Sheldon, The Big Bang Theory, American Dad, AEW, The Cube, Miracle Workers, Friday Night Vibes, Wipeout, movies and more. Get more TBS: Full Episodes: TBS.com/shows YouTube: YouTube.com/TBS Twitter: Twitter.com/TBSNetwork Facebook: Facebook.com/TBSNetwork Instagram: Instagram.com/TBSNetwork Funniest Moments (Mashup) | 17 Again | TBS youtu.be/iUMw7V_8OwY TBS YouTube.com/user/TBS