Lily Allen lashes out at "drug-addled lunatic" Courtney Love. The 24-year-old British singer slams the 45-year-old Hole rocker, calling her a "crazy old lady" for spreading rumors about her.

Last month, the two singers fought at the Brit Awards in London, wherein Love told everyone that Allen stopped her from wearing Chanel, which the younger songstress endorses, to the event so she wore Miu Miu instead.

The "Smile" singer clearly wasn't pleased with Love. She had an exchange of words with the rocker at the NME Awards, which allegedly turned into a shouting match.

Allen cleared things on her Twitter, saying, "Courtney Love and I did NOT have a bust up at the NME's. There was an exchange of words, yes."

"She's upset because she has got it into her head that I put a lock on some dresses for the brit awards. She's made no secret of this and, when I saw her at the NME's she tried to talk to me and I told her to shut up and stop spreading stupid rumors about me. [sic]"

But don't count on her to fight with Love, because "as a rule I don't pick on crazy old ladies."

When a follower asked if celebs really put a lockdown on clothing, she answered, "no but it's the sort of thing a paranoid drug addled lunatic might come up with." icelebz