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-- Kristen Wiig covered up at the Cinema Society party for Friends With Kids, sponsored by Grey Goose Cherry Noir, at Boom Boom Room of the Standard Hotel in NYC.

-- Lady Gaga having dinner with her mother after launching their Born This Way Foundation at Joanne's in NYC.

-- Leonardo DiCaprio spotted smoking electronic cigarette SmokeStik at Goal Sports Bar in LA.

-- Katy Perry racing go karts with Kim Kardashian at the Belvedere sponsored bash for Kanye West's new fashion line at Halle Freyssinet in Paris, France.

-- Aubrey O'Day supporting Indashio while watching his fashion show in the Dominican Republic.

-- Rumer Willis playing ping pong with Rodrigo Santoro at the Standard Hotel before heading to the premiere of The Diary of Preston Plummer during the Miami International Film Festival in Miami.

-- Kelly Benismon brunching with newly single Tinsley Mortimer at "The Secret Garden" party at Baoli in Miami.

-- Jimmy Fallon telling Jill Zarin that he based his late night talk show character from "Housewives of Late Night" on her at the SNL after party hosted by Union Square hot spot Kibo in NYC.

-- Hayden Panettiere partying with her good friend Austin Pettis, who plays for the St. Louis Rams, at Playhouse in Hollywood.

-- Jamie-Lynn Sigler enjoying dinner with friends at Scarpetta in Las Vegas.