Not only that, JT's parents were there, partying on till the wee hours as well. (When was the last time your partied with your mom till dawn?)
With no sign of current fling Jessica Biel, JT made some time with the sexy cocktail waitresses at the club. Read more about the late night Vegas action at Perez Hilton.com.
And remember, when you're a celeb, what you do in Vegas doesn't stay there. It ends up here.