Justin Bieber released new album Believe on Monday

Justin Bieber is happy to look after David and Victoria Beckham's children when they fancy a night out.

The teen singer says he and girlfriend Selena Gomez, 19, would take brilliant care of Brooklyn, 13, Romeo, 9, and Cruz, 7, as well as the Beckham's gorgeous little girl Harper Seven, 11 months.

'They are great kids,' Justin, 18, tells the Daily Star.

'I think the going rate for babysitters is about 10 bucks an hour but if David gives me some free kick lessons I am sure we could give him this one.'

David, 37, and Victoria, 38, have made no secret of the fact that their boys are big Beliebers.

The trio were ecstatic when Justin, 18, unexpectedly sent them personalised guitars last year.

'Thank u @justinbieber for the boys signed guitars!!! they are so happy!!!!!!! X VB x,' Tweeted Victoria along with a picture of the instruments.

'Romeo got a special little message from @justinbieber!! X vb.'

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Anna Duff