See where the stars ended up last night.
- Kim Kardashian grooved out to the new Diddy album [KimKardashian]
- Katrina Campins posted holiday party pictures to Twitter [KatrinaCampins]
- Kourtney Kardashian celebrated the first birthday of her son, Mason [KourtneyKardash]
- Serena Williams was inducted into the California Hall of Fame [serenawilliams]