Shirtless Justin Timberlake and a bikini-clad Jessica Biel took a break from playing golf to sunbathe and spend time with friends on the beach yesterday on their Mexican vacation. When he returns, JT will be interviewed by Katie Couric during her All Access Grammy Special, and he's even expected to perform with T.I. at the show on Feb. 8. It sounds like his 2007 claims he would never return to the Grammys since they used him for ratings — which proved to be sort of true — must be water under the bridge for JT. Either way, for now all he has to worry about is working on his tan with his hot girlfriend in her skimpy bikini bottoms.