Model/heiress Lydia Hearst and on-and-off boyfriend Cisco Adler have gone and got matching tattoos! How does this guy land chicks like this??? This is the same guy who’s hooked up with Mischa Barton and Paris Hilton, among others.

They each got a skeleton key design engraved on them early last week, before showing up in costume (she as Wonder Woman, he in drag) to a tequila-soaked pre-Halloween bash at Los Angeles nightclub Hyde.

“Lydia cryptically said that they are a symbol of a new way of life,” a friend explained.

Money can buy all the skeleton key tattoos in the world, but I guess it still can’t buy class.

This guy must have one hell of a personality, because he’s totally fug, he’s not exactly packing (unless you count his balls — you could pack for a week-long vacation in those things), and yet his band’s fan base seems to start and end with Hollywood It girls. Honestly, does anyone you actually know in real life listen to Whitestarr?

Cisco Adler, the rocker who’s been linked to Mischa Barton and Kim Stewart, finally jumped on the Paris Hilton train this week.

The scariest scene at Guy’s karaoke night on Tuesday wasn’t Paris “singing,” it was her make-out session with ballsy Cisco Adler!

A TMZ spy spotted Hilton and Mischa Barton’s grungy ex-boyfriend kissing all over each other at the club last night, with Paris going so far as to give Adler a little lap dance. Careful of the boys!

When she wasn’t getting randy in the crowd, Paris graced the stage with a rendition of “Bette Davis Eyes,” followed by a medley of her hit “Stars are Blind.”