Justin Bieber had an exciting night on the town to celebrate the kickoff of his ‘Believe’ tour. The young pop star was spotted in a Dublin club last night (Feb. 17) and apparently, it was quite the party!

Following his first show at the O2, the 18-year-old and his posse allegedly hit up two nightclubs where they enjoyed a variety of adult beverages, as you can see from the pic.

A source reported that “He was flanked by a team of six burly security guards and arrived in a fleet of Mercedes and Range Rover jeeps. Justin stayed till about 1AM in the Grafton Lounge before he was whisked off to Everleigh Gardens where he stayed for a good while. He was in flying form, he was even up dancing at one stage and looked like he was having a ball.”

We can’t help but wonder if he was trying to prove that he’s over former flame Selena Gomez. After all, Gomez is clearly doing just fine without him. She’s living it up in Paris as we speak – alongside pals Vanessa Hudgens, Ashley Benson and Rachel Korine – to promote her upcoming film, ‘Spring Breakers.’

Or maybe The Biebs was simply taking advantage of the fact that he can legally drink overseas, since he can’t at home.

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