Justin Bieber has delighted David and Victoria Beckham's three sons by sending them signed guitars.

The Beckham boys -- Brooklyn, 12, Romeo, eight, and six-year-old Cruz -- are all huge fans of the 'Baby' hitmaker and Victoria took to her twitter page to thank Justin for his generous gift and share a picture of the musical instruments.

Victoria tweeted: "Thank u justinbieber for the boys signed guitars!!! they are so happy!!!!!!! X VB x."

The kids love Justin so much that David revealed Romeo wants to name their new sister "Justine Bieber Beckham."

The soccer superstar and Victoria are expecting their fourth child -- a confirmed daughter -- next month and their middle son is desperate to name the new arrival after the pop star.

David said: "When we got told it was a boy, Romeo said, 'How about Justin Bieber as a name? Justin Bieber Beckham?'

"So now we know it's a girl, he said, 'Well, how about Justine Bieber Beckham?'"

David says the kids are huge fans of the 17-year-old singer and the youngest two boys met Justin after one of his concerts.

He explained: "The funny thing is, I was on the way to the school drop-off the other day and my youngest said, 'Do you think we could have a play date with Justin Bieber?' I said, 'I think he's a little bit busy.'"