Justin Bieber certainly loves beautiful ladies!

The popstar partied the night away at Los Angeles hotspot Warwick with gorgeous gals Karrueche Tran and Christina Milian, who both looked like they were having a blast. We'd be having a blast too if we were hanging out with the Biebs!

For the night on the town, Karrueche Tran showed off her slim pins with a pair of leather shorts, mesh top and tan booties. Christina Milian highlighted her tatas with a plunging mesh tank, a pencil skirt and classic pumps.

Bieber, who couldn't resist peeking his baby face out of his sweet ride, has been playing Mr. Nice Guy recently -- but we know he loves to party hardy with beautiful babies!

Is the old JB coming out to play? We hope so! We just hope Chris Brown doesn't see these pics or the "Boyfriend" singer is going to be in the hot seat!