Celebrity pictures: Beyoncé, Lauren Goodger, Rob Lowe

Today's celebrity pictures include a blue-nailed Beyoncé, in honour of baby Blue Ivy, out and about in New York, Rob Kardashian and Scott Disick bonding in the Big Apple, and a handsome Rob Lowe and Sheryl Berkoff attend the premiere of Knife Fight at the 2012 Tribeca Film Festival.

Also in New York, Tilda Swinton and her boyfriend Sandro Kopp go for coffee; in Los Angeles, a trim Miley Cyrus leaves her pilates class and a pregnant Kristin Cavallari runs errands; and in Vegas, Cameron Diaz attends the CinemaCon 2012 Pioneer of The Year Awards.

Meanwhile, Victoria Beckham models clothes from her own collection in Hong Kong; and in London, Lauren Goodger leaves the May Fair hotel and an eccentric Su Pollard attends the 'Ballet Revolucion' at the Peacock Theatre.