Rachel Roy, the fashion designer and ex-wife of Damon Dash, turns 36 today. Actor Chad Lowe is turning 42. Discovery CEO David Zaslav is 50. Eddie Cahill of CSI: NY turns 32. Mario Van Peeples is turning 53. Shane McMahon, the wrestler and son of WWE chairman Vince McMahon, is 40. And singer Charo turns 59 today. A few people celebrating birthdays this weekend are below.

Alicia Keys talking on her phone in Midtown ... Khloe Kardashian and Joan Rivers selling cupcakes as part of a segment for Celebrity Apprentice ... Whitney Port walking with a friend around the Central Park Reservoir ... Chris Noth walking down Broadway ... Katie Holmes and Suri leaving their apartment on East 13th ... Gary Sinise and Russell Crow leaving ABC studios ... Aubrey O'Day posing on the red carpet at Bowlmor Lanes ... Debra Messing outside the Letterman show ... Actress Famke Janssen and her boyfriend walking their dog on Prince Street ... And Kourtney Kardashian and her boyfriend Scott Disick leaving their hotel in Midtown, just a few minutes before Jimmy Kimmel and CSI star Eddie Cahill stepped out, too.