Ashlee Simpson says boyfriend Pete Wentz is her "best friend".

The "Pieces of Me" singer - who has been dating the Fall Out Boy rocker for over a year - insists she and Pete are soul mates and also claims the musician's constant praise has made her more confident in her work.

Ashlee Simpson is nursing lover Pete Wentz back to health since he broke his ankle.

The Fall Out Boy rocker, who suffered the injury after jumping off a 10ft stack of speakers at the Voodoo Music Experience festival last month, admits he is a difficult patient but Ashlee is doing her best to make him comfortable.

Fall Out Boy rocker Pete Wentz broke his ankle on stage in New Orleans on Sunday.

The 28-year-old musician - who is dating singer Ashlee Simpson - was indulging in some energetic on-stage antics at the Voodoo Music Experience festival when he slipped.

Jessica and Ashlee Simpson are set to duet together.

The sisters - who have each forged their own successful solo careers - have been writing songs together for years and are now considering teaming up in the recording studio.

Jessica Simpson's father Joe has been playing Cupid. The singer-and-actress' manager dad was seen trying to get the single 27-year-old a date at the Rolling Stone magazine party in Las Vegas last week.

A fellow partygoer told Us Weekly magazine: "Joe was chatting to a handsome guy and told him Jessica was single. He gave the hunk his assistant's number and said he'd set him up with her."

Ashlee Simpson's boyfriend and father both rushed to her rescue when she got caught up in a mass brawl outside a Las Vegas club over the weekend.

Troubled started when Ashlee, her Fall Out Boy star lover Pete Wentz and Joe Simpson were trying to leave the Decaydance/GQ party at the Mirage Hotel and Casino's Jet nightclub on Sunday.