Liar Liar, Paris’s pants are on fire, and not just from a scorching case of herpes.  After telling Larry King that she’d never even done drugs, Us Magazine is reporting that she openly smoked marijuana with Cisco Adler while out singing karaoke the other night.

The pair arrived at nearly 1 a.m. with two other girls. In skinny jeans, a black tank and a sequined top, Hilton didn’t get her own cocktail, but she stole sips from Adler’s vodka tonics throughout the night. Later, the burgeoning popstar sang "Bette Davis Eyes" in honor of a friend’s birthday, and stayed onstage for an unexpected encore when the DJ started playing her single, "The Stars are Blind." Musician Adler performed "Brown Eyed Girl," and then left the stage for Hilton’s side.

The duo, who Usmagazine.com sources witnessed making out more than once, were perhaps feeling loose and lovey due to the marijuana they were openly smoking at the club. As the 4 Non Blondes song "What’s Up" played in the background, Hilton sang along, replacing the chorus’ "what’s going on" lyric with "let’s smoke a bowl!"

I’m hoping for her sake that she had "bowl goggles," as Cisco looks like he could be the love child of Schneider from "One Day at a Time" and Carrot Top.

Paris Hilton’s former record label has just been sued for $500,000 for copyright infringement of UB40’s Kingston Town song. Paris Hilton recorded Stars Are Blind which is an exact copy of Kingston Town. So much for being original, but we all know what a fake Paris is. Paris is not named in the lawsuit because she was dropped by her record label. There’s no doubt Paris didn’t do her own singing either. If she did then she wouldn’t have any problem singing it live now would she? Compare for yourself below:

UB40 Kingston Town

Paris Hilton Stars Are Blind