Bieber says sorry but gives no explanation for cancelling appearances

Justin Bieber has said sorry for cancelling multiple appearances, but gave no reason as to why. Photo / Getty

Justin Bieber has apologised to fans after cancelling a string of planned appearances.

The Sorry hitmaker cancelled a series of performances - including an appearance on The Late Show With Stephen Colbert - without offering a proper explanation and has now taken to his Twitter account to say sorry to those people who were hoping to see him.

My apologies to @colbertlateshow as I won't be able to make it to nyc tomorrow for the show. I look forward to making it up to you soon

— Justin Bieber (@justinbieber) November 24, 2015

Later, he thanked his fans for their understanding, though he again declined the chance to explain the problem.

Indeed it sometimes does @justinbieber Happy Thanksgiving! https://t.co/BmsnsttcD1

— Stephen Colbert (@StephenAtHome) November 25, 2015

Gossip website TMZ said Justin has been on an emotional roller-coaster in recent weeks and simply could not continue with his hectic schedule.

The announcement comes shortly after it was reported Justin serenaded his ex-girlfriend Selena Gomez in a hotel bar.

The on/off couple were seen at the Montage Hotel in Beverly Hills, where Justin sang a number of songs, including My Girl and his own tune Sorry.

It comes after Justin recently admitted he will always love the singer.

"[She] is someone I love dearly. I'm never going to stop loving her. I'm never going to stop checking in on her," he said.

"I don't think if you end a relationship, you should end that, unless it was super toxic and you guys were hurting each other physically or mentally. We always respected each other and we still respect each other."

-Bang! Showbiz