Julia Roberts' actress niece is planning an assault on the pop charts after recording her first single.

Teenager Emma Roberts, the star of US kids show UNFABULOUS, has recorded I WANNA BE for the upcoming UNFABULOUS + MORE soundtrack album, and it's to be released as a single.

The 14-year-old daughter of Julia Roberts' brother ERIC says, "It's a really fun, upbeat song that just says have fun and love life."

But the teenager tells MTV News she's not exactly looking forward to following teen queen actresses like Lindsay Lohan and Hilary Duff onto the stage.

She adds, "I have a bit of stage fright, singing-wise. Singing, I'm still getting used to, and it's kind of embarrassing just because everyone's watching."