Ultimate Betrayal: Rapper Lil Wayne reveals that Drake hooked up with his girlfriend in Tell-All Book.

As far as friendships in the music world go, theirs is seen as one of the most solid, with Lil Wayne being credited for much of Drake's success after signing him to Young Money Entertainment.

But in a new book proposal, Lil Wayne reveals their bond was tested when Canadian rapper Drake confessed to sleeping with one of his girlfriends while he was imprisoned for gun possession in 2010.

 Wayne, real name Dwayne Carter, wrote: 'This is the type of s**t that a man never wants to find out when he's locked up. Or, maybe so, cause only God knows what I would have done if I wasn't locked up right now.'
Wayne, who reportedly learned of the tryst during a visit from Drake, added that he confronted the unnamed woman about the encounter and was told it happened the day before she met him.

He also wrote: 'I woke up feeling f****d up about the f****d up day that I had ... finding out that she f****d Drake was the absolute worst thing I could've ever found out.

'As a man, honestly, that s**t hurt ... and not because it was Drake, it could have been any man. It would've hurt the same.'