(Cover) - EN Showbiz - Ashlee Simpson Wentzs 22-month-old son is obsessed with Jay-Z.

The singer has one child, Bronx, with her husband, Fall Out Boy rocker Pete Wentz. Ashlee and Pete are both passionate about music, and appear to have passed their love on to their son.

Ashlee has revealed she has played the tot a host of songs, but he favours Sesame Street character Elmos theme tune and anything by rapper Jay-Z.

We sing together. He knows the Elmo song, and he sings that in the car, which is really cute. He loves Jay-Z too, so we do those ones without the swear words, Ashlee laughed to Us Weekly magazine.

Bronx also has some impressive dance moves. The tot recently shocked Pete and his aunt, Jessica Simpson, with his amazing rhythm while he was grooving to teen pop star Justin Bieber on TV.

Watching Bronx dance around to Justin Bieber on the view. Ash and I can't stop laughing (sic)!!! Jessica wrote on her Twitter page.

Pete replied: haha he's got some movies for a lil dude. And I don't mean bieber (sic). (C) Cover Media