Hollywood Confidential: Blind Item of the Day

Us Weekly hears…that Lady Gaga was recently on the receiving end of some nasty insults from an outspoken rocker girl 20 years her senior.

After calling the singer a "weird, sexless Barbie doll" during an interview with TheFix.com, the singer got snarky about Gaga's style: "You can only pull off this meat-dress act for so long. If she doesn't watch out, she'll turn into a lonely drag queen."

Do you know which star we're talking about? Leave your best guess in the comments section. Want more blind items from Us? Click here.