BOYLE-ING HOT: Piers Morgan, chatting after lunch at the Ivy in L.A.about how Susan Boyle is "an amazing talent, but there is some better stuff to come" on Britain's Got Talent and America's Got Talent. Also at the Ivy were Sharon Osbourne, Sheryl Crow and Marc Anthony. Same time, across town, Dancing With the Stars pro Mark Ballas had a very late breakfast at Toast with former American Idol contestant Joanna Pacitti.
NIGHT OWL: Adam Lambert, having dinner at Bazaar in L.A. followed by a couple of hours at the Abbey bar.
Which celeb was spotted hanging out at a tops-optional pool lounge in Sin City?
A TAN PLAN: Avril Lavigne, soaking up some sun at the Bare pool lounge at the Mirage in Vegas. The pop star kept her top on!
THREE AMIGOS: Andy Samberg, clubbing with Jonah Hill and Aziz Ansari at Hollywood hot spot Bardot.
STRIKERS: Katy Perry, hanging out with friends at Lucky Strike Lanes & Lounge, following her performance at the Fillmore in NYC.
FINE DINING: Ginnifer Goodwin, walking into Koi Las Vegas with her arms around new beau, Cabin Fever star Joey Kern.
CHAMPAGNE WISHES: Jay-Z and Timbaland, enjoying bubbly at Greenhouse in NYC.
ARTSY OUTING: Hilary Swank, Zach Braff, Lisa Kudrow, Vanessa Minnillo and Nick Lachey, checking out furniture and art at the opening-night party of the L.A. Antiques Show benefitting P.S. Arts at the Barker Hangar in Santa Monica.
—Additional Reporting by Dahvi Shira