Vegas's New Hotspot

9/29/2008 12:00:00 AM Lavo, a boathouse-inspired restaurant and nightclub boasting water basins and mosaic tile, opened with a slew of celebs Sept. 13 at the Palazzo in Las Vegas. A scruffy Ryan Reynolds hung a few tables away from Kevin Federline. Shannen Doherty held court with pals while Mario Lopez let loose on the dance floor with a mystery brunette. Nicky Hilton avoided her ex Kevin Connolly, who spent the night hanging with Stacy Keibler.