We hope Chris Brown doesn't kiss his mom with that mouth! The singer went on a Twitter rant, where he called out other singers for kissing ass for covers. Is he dissing Rihanna?
The gloves are off and the claws are out! So far, the breakup between Rihanna and Chris Brown has been rather amicable, but on June 8, Chris went on a spiteful Twitter rant calling out pop stars who "kiss ass" for "respect," and he lashed out at people who "walk with their noses in the air."