Last week, Lil Wayne's lawsuit against Birdman was for $8 million and was a rumor. Today it's for $51 million and for real.

TMZ claims they've seen the lawsuit Wayne has filed against Baby. According to the tabloid, Wayne is suing for his freedom -- which he says he is entitled to because Cash Money violated his contract by not paying him his advance on Tha Carter V. Then he also wants the $51 million for his trouble.

The $8 million figure brandied about last week refers specifically to the advance on Tha Carter V that he has yet to receive. He was also supposed to get another $2 million after the album was completed.

Additionally, Weezy wants the judge to declare he's the joint copyright owner of all Young Money recordings, which would include Drake and Nicki Minaj.

It's been said Baby only starts negotiating when the legal threat against him is real. So we'll see what happens now.

Update: Here is the full lawsuit.

Lil Wayne v. Cash Money - complaint.pdf