Chief Keef indulged in a pretty sick Twitter tirade against clean-cut pop star Katy Perry after the 'Fireworks' singer joked about the rapper's new song this week. Tweeting after hearing Keef's tack 'Hate Bein' Sober,' Perry told followers, "I now have serious doubt for the world."

Keef caught wind of the jibe and resorted to a sickening verbal attack, tweeting, "Dat bitch Katy Perry Can Suck Skin Off Of my Di*k," before adding, "Ill Smack The Sh*t out her." Bizarrely, it was the pop star who ended up apologizing, replying "Mr. Keef! I'm sorry if I offended you. I heard a lot of people guesting on the song & didn't even know it was you in particular," in reference to the Wiz Khalifa and 50 Cent parts on 'Hate Bein' Sober.' She backtracked further, saying, "Actually... I'm a fan of your 'Don't Like' video tbh. I was really just having a general opinion on our generations desire to be constantly intoxicated... Believe me, I'm a lover not a hater."

No word on whether Keef accepted the apology, though he did re-tweet the message. A few hours later to he openly expressed his lust for NFL start Reggie Bush's fiancee Lilit Avagyan. Oh Keef.

Watch the video for Chief Keef's Menace II Society:

Hate Bein Sober is the latest single to be taken from Chief Keef's debut album Finally Rich, released in December 2012. It debuted at No.29 on the Billboard 200 chart with first week sales of 50,000. By March, it had shifted 152,000 copies.

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Katy Perry
Katy Perry Was On The Receiving End Of Some Twitter Abuse From Chief Keef