AceShowbiz -

P. Diddy regrets the fact that he went on a tirade when a man in a nightclub did not drink his brand of vodka. The rapper admits on his Twitter that he "backslid and regressed" when he launched racial and homophobic slurs at a clubgoer named Ricky Parker over the weekend.

Rappers and fans gathered at Atlanta's Compound club for an event that was promoting P. Diddy-owned Ciroc. While he was on stage to address the crowd, he spotted Parker drinking Grey Goose instead of his label and threw ice at the shocked man's direction. "Put that sh** down. It's Ciroc Boys in The building. What you gonna do? This is my house," Diddy was heard as saying.

The rapper, who hosted the night with T.I., also called Parker "f**got" and challenged him to a fight. T.I. reportedly tried to bring some sense back to Diddy and scolded him later on. Some people who were there claimed that shots were fired, but the story was never confirmed.

Diddy, in his apology, said, "I'm sorry for the ignorant way I repesented [SIC] myself ... I have backslid and regressed. Forgive me for my ignorance. Pray for me pls. I know better and I am better." He added, "I have a responibility [SIC] that I promise I will live up to. And I'm more dissapointed [SIC] in myself than you know. I will humble myself and learn. Bottom line is I'm sorry to all!"

Parker, meanwhile, told TMZ that he's already bitter from the incident. "Humiliated and disrespected", Parker said, "You won't ever hear me support him from this moment forward."