Justin Bieber claims he had the “Worst Birthday” this weekend in London. Boo…

After the “Girlfriend” crooner’s circus-themed 19th birthday celebration went bad Friday night in London, the Biebs took to Instagram on Sunday, bashing Cirque du Soir night club for shutting down his celebration early. The club claimed that it was because he was trying to get 2 underaged people into the club including 14 year old Jaden Smith (Will Smith’s son) and his new rebound girl Ella-Paige (who is 17).

Here’s what he says:

“The funny moment when people believe I brought underage people to a club.. U think Will is letting his 14 year old in a club, I don’t think so.. 2nd I love how the club wanted to give the press another reason to why we didn’t stay at their weak ass club so they wouldn’t look bad for me walking in and right back out,” Bieber said in a caption next to a black box. “i said m ‘worst bday’ but that was due to dummies pushing over my fans and being overly aggressive. Btw it wasn’t the worst bday cuz all my friends from back home flew in I was just mad in the moment.”

Bieber’s birthday bash went sour after members of his entourage got into an apparent confrontation with the club’s security, prompting his entire party to leave, a source said.

Security thought some members of the superstar singer’s crew looked rather young when they arrived to the club, and were refused entrance because of their age after they were asked to show their IDs.

“We, like all clubs in London, operate a strict age policy,” a club spokesperson said. “As a few of the members of the party were under the suitable age of 18, the security team at Cirque Du Soir, London, clearly explained this rule and refused entry to the club for anyone who could not provide us with adequate proof of age.”

Prior to Bieber’s Instagram posting, he returned to the restaurant where he grabbed dinner on his birthday, Indian restaurant Mint Leaf, sporting dark shades, a black hoodie, black leather pants, and bright red sneakers.

At least there’s been one highlight during his trip to London.

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