I don’t know how many times I have to repeat myself: stay off of social networking sites if you’re a celebrity with no impulse control (or common sense).

Singer/songwriter Keri Hilson is having a bad week. First, she butchered the National Anthem by forgetting the words during halftime of the Lakers/Hawks game on Wednesday. Then last night, on her Twitter.com account, Keri insulted her own mother in response to a tweet from a moron that she should have ignored.

For those of you who are unfamiliar with the social networking site Twitter.com, Keri reposted (retweeted) a tweet from an idiot, and then she added her own words to the tweet, which are preceded by the arrow.

I don’t know if Keri and her mom get along, but she didn’t have to go there. Would you call your own mother a b*tch knowing that the world is watching? A better question would be, why do celebrities feel the need to lower themselves to the standards of a moron’s by responding to ignorance with ignorance?