Rihanna

Earlier this year, fans of Rihanna expressed their outrage when the singer released a track with her ex-boyfriend Chris Brown, who he was charged and found guilty for physically beating her up in 2009. One of her fans tweeted Rihanna, saying that she has "lost a lot of respect for @rihanna" and that "makin a song with the dude that beat your face off is not a good look". Rihanna fired back at the criticism by replied the user with a snide remark, tweeting "Neither is your avi (twitter picture)". This fan should have known her star better than to criticize her.