According to Tweets made by rapper Fabolous over the weekend, singer T-Pain had a few choice words for Jay-Z while deejaying at Rehab nightclub in Las Vegas.

While doing his set at Rehab, T-Pain proceeded to tell the crowd “fuck Jay-Z.”

“Yo I’m at Rehab in Vegas.. T-Pain is DJ’ing.. Sayin Fuck Jay Z, he old, blah blah.. guess its backlash from D.O.A..,” said Fabolous via Twitter.

T-Pain’s “fuck Jay-Z” comments are a stark contrast to his initial response to Jay Z’s Death of Auto Tune (D.O.A.)” “That affected me in a great way, man. I made sure I honored him as a great song writer, that’s like the best song I heard in a couple years, man,” T-Pain told MTV regarding “D.O.A.” “And it’s great that somebody that important stepped up and vouched for me.”

The DJ who followed T-Pain was apparently unphased by T-Pain’s comments, he immediately started his set with “D.O.A.” followed by a number of other Jay-Z hits.

“Yo the DJ is doin’ a Jay-Z set.. D.O.A., Kingdom Come, “Run This Town”, “Heart of the City”, “H to the Izzo”, “Amillie Free”. T-Pain somewhere in here,” said Fabolous in a Tweet.

T-Pain has yet to comment publicly on his remarks made that night.