Justin Bieber Takes Selena Gomez Jokes in Stride

Justin Bieber sports a different hairstyle as he hits the carpet to celebrate his 21st birthday at Omnia inside Caesar Palace Hotel and Casino on Saturday night (March 14) in Las Vegas.

The 21-year-old entertainer was joined by David Arquette and Asher Monroe.

Earlier in the night, Justin hit up his big Comedy Central Roast, at the end of which he apologized for his actions.

“I turned a lot of people off the past few years…There was no preparing me for this life. I got thrown into this, 12 years old,” Justin said (via THR). “There are moments I’m proud of and things I’ve done that don’t define who I am. I look forward to being someone you’re proud of…I’m excited to see what’s next. You have my word – I will not end up broken, pathetic, bitter or sitting on someone else’s roast. I’m at a moment of change. This is a new day.”

When asked how he handled the comedians taking jabs at ex-girlfriend Selena Gomez, Justin said, “Everybody was going balls to the wall. It was whatever.”

15+ pics inside of Justin Bieber celebrating his birthday in Vegas…