The feud between rapper Lil Wayne and his former Cash Money boss and friend Birdman (aka Bryan "Baby" Williams) just got uglier. At his performance at LIV night club in Miami for fellow rapper Jim Jones' birthday on Sunday, Lil Wayne got sprayed with liquor as Birdman threw a drink at him while he was performing on stage, according to video footage obtained by TMZ.

In the fan-shot footage, Wayne is performing his song "Coco," which is a diss track against Birdman and his record label Cash Money. In the middle of the song, Wayne can be heard delivering his scathing lines about the friend and label that scorned him.

"And this that Sorry 4 The Wait 2, No more am I my brother's keeper, Cain and Abel, Young Money sharp, I'm still eatin', I just chipped my tooth..." The music stopped in the video and Wayne can be seen, looking up at Birdman who was standing in the VIP booth above the stage, in the same direction from where the drink was thrown.

The spat between the rappers started last December, when Wayne fired off a series of tweets explaining to fans the reason for the delay in the release of his album "Tha Carter V," the Daily Beast reported. Wayne filed a $51 million lawsuit against Birdman claiming the label owes him $8 million for the delay in the record's release and that it withheld accounting documents from him.

Wayne didn't retaliate, but the incident was enough to shut the club down, according to the New York Daily News. See TMZ's footage below.