Reality TV star Heidi Montag will launch her pop career with a performance of an untitled new song at her 21 birthday party in in Las Vegas. The Hills star is refusing to reveal too much about new song, but admits it features a sample of one of her favorite tunes.

She says, "It's an '80s sample from Depeche Mode's 'Personal Jesus.' I love their music."

She'll play it live at her birthday bash in September.

(This news article provided by World Entertainment News Network)