Which Inked-Up Celeb Got a Fingernail Tattoo?

Mon., Mar. 30, 2009 1:38 PM PDT by Cristina Gibson

www.friendsorenemies.com

We didn't even know it was possible to get a tattoo on your fingernail, but this rocker claims to have done just that.

He showed off his latest inky addition on his official blog and at a big Hollywood awards show last weekend.

In case you can't see, the tat (whether permanent or of the Magic Marker variety) reads "BX"...find out who the guy is and what the letters mean after the jump!

Kevin Mazur/Getty Images

It's Fall Out Boy and new father Pete Wentz, and the initials stand for his son, Bronx.

He debuted his finger ink for photogs at the Nickelodeon Kids' Choice Awards on Saturday, when he came without wife Ashlee Simpson-Wentz, who was on babysitting duty.

“The missus is with the baby,” Wentz told E! News. “The missus is with the little guy right now.”

The two must have gotten a sitter on Sunday night, though. Pete and Ash hit Koi for an early sushi dinner, where they were joined by a group of friends.