Kardashian steps out for son Mason's second birthday in L.A. Plus: Sofia Vergara, Katy Perry, Justin Beiber and more
Published: Thursday Dec 15, 2011 | 02:00 PM EST
More from PEOPLE
- Comic-Con Has Started – and Fans Are Going All Out with Their Costumes
- Read the Cover Story: JFK Jr.: The John We Loved
- RHONJ's Teresa Giudice Struggles to Balance Motherhood with Post-Prison Restrictions: 'It's Hard to Be Monitored All the Time'
- 7 Times Jennifer Lopez & Her Rock-Hard Abs Made Us Forget She's 47
- We Performed Circus Acts with Ringling Bros. and Barnum & Bailey