Justin Bieber Twitter message for Bill Clinton after bizarre video surfaces of foul-mouthed star urinating in bucket

The Canadian teen squirted cleaning liquid at a picture of the former president, shouting 'F**k Bill Clinton'

Justin Bieber is having a controversial year

Justin Bieber has reportedly apologised to Bill Clinton after bizarre footage emerged of the pop star cursing the 42nd US president.

The video, shot earlier this year and acquired by TMZ, shows Bieber and friends leaving a New York nightclub via a restaurant kitchen. But before departing the 19-year-old stopped to urinate in a yellow mop bucket.

Bladder emptied, he proceeds to grab a bottle of cleaning liquid, spray its contents onto a framed photo of the former leader of the free world and shout “F**k Bill Clinton”.

The Canadian singer has given no clue so far as to what caused the outburst, but he did tweet to display his regret, posting on Wednesday: "@billclinton thanks for taking the time to talk Mr. President. Your words meant alot. #greatguy"

While several gossip sites claim the teen has phoned twice to apologise formally, President Clinton has yet to tweet back although E! Online reports him as commenting “If that is the worst thing you have ever done, all is well.”

Bieber has already been involved in several distressing incidents this year. Swedish police discovered drugs on his tour bus in April; he caused outrage by leaving an insensitive comment in the guestbook at Anne Frank’s house; and he was alleged, though cleared, to have struck a photographer with his white Ferrari in June.