And the 41-year-old thinks he should provide the entertainment on the night.
He told British newspaper the Daily Star: 'I want to be involved in the royal wedding for sure. ?
'William and Kate need to give me a call. They don't need any other entertainment, just me.'
His interest in the royal family doesn't just stop at the 28-year-old Prince and Middleton, 29.
While the star is in London to promote his new album Last Train To Paris, he wants to get together with the Queen.
Diddy added: 'I went to Buckingham Palace this morning because I want to play the Queen my new album but they wouldn’t let me in. I couldn't believe it.
?'Having tea with the Queen would be the best afternoon of her life.'