Sharon Osbourne has her daughter Kelly's back in the escalating feud between the Fashion Police fixture and Lady Gaga. What's the deal exactly?
Osbourne is fired up about a letter Gaga wrote to Kelly on her official website, labeling her a "bully" who unfairly picks on stars and celebrity fashion.
Now Sharon is firing off a letter to the pop star in response, calling her a hypocritical jerk who's essentially encouraging her fans to harass Kelly.
Gaga recently said she's disgusted at Kelly Osbourne and Joan Rivers and their joking "about artists and celebrities as if we are zoo animals."