In Las Vegas, Ed Sheeran performs at 'Bite of Las Vegas' held at Desert Breeze Park, a suited Scott Disick arrives at Chateau Nightclub and Gardens and Justin Bieber performs at the Grand Garden Arena.
Meanwhile, 90210 star Shenae Grimes and her British model boyfriend Josh Beech attend the 90210 cast party at Pink Taco in LA.
Across the Pond at Paris Fashion Week, Kate Moss links arms with photographer Mario Testino at Stella McCartney's Spring/Summer 2013 show.
And in London, Lizzie Cundy reveals her underwear in a sheer black lace dress at Mahiki along with Diana Vickers, in a white crocheted blouse and navy skirt, and Sugababe Mutya Buena, showing off her leg tattoos in a black minidress.
Copyright: Rex Features David Thompson/Rex Features