Vince Vaughn, observing Cinco de Mayo with – what else? – a fiesta at Hollywood bar Velvet Margarita Cantina. While female admirers swarmed the actor, he spent most of his evening nursing a beer and hanging with his male friends – including Jon Favreau. Later, Vaughn started up his own late-night/early-morning poker game with his buddies, according to an onlooker – and when Gloria Gaynor's disco anthem "I Will Survive" came on, he couldn't resist doing the "chair boogie."
Jake Gyllenhaal, flipping through Sports Illustrated while shopping at Borders in Hollywood with pal Austin Nichols and other friends, an onlooker tells us. The main topic of conversation among the group? The Dodgers, naturally.
A solo Ryan Gosling, going head-to-head (and ear-to-ear) with Miami's eyeliner-sporting hipster community while rocking out at the "Rotten Apple" party at SET Night Club. The actor sipped a jumbo can of Sapporo beer at a table by the club's fireplace and graciously snapped pictures with fans' camera phones – all while listening to Amy Winehouse and the Strokes.
Ray Nichols / Splash News online
By OLIVER JONES and DEBI SPRINGER
Monday's Couple Watch >