Former X Factor Star Dies In Los Angeles

Tributes have been paid to American pop star Simone Battle who has died aged 25.

The former US X Factor contestant, who was later a member of girl group G.R.L., was found dead at 8am on Friday at her home in Los Angeles.

Police are investigating the cause of her death.

X Factor judge Cheryl Cole, now known as Cheryl Fernandez-Versini, led tributes to the singer.

"Such tragically sad news to hear of the passing of Simone Battle. My thoughts and prayers are with her loved ones #RIPSimone," she tweeted.

Battle's friend and fellow musician Derek Butler broke the news on his Instagram account overnight.

He posted a picture of the singer, with the message: "I'm still in shock and in disbelief to have confirmed the death of my childhood friend.

"Her heart was pure gold and her star power limitless. Rest in sweet peace Angel."

Battle appeared in the first series of the X Factor in 2011 and made it through to the live shows.

G.R.L. were formed last year by Robin Antin, who founded the Pussycat Dolls.

They are expected to enter the top five of the UK's Official Chart with their new single Ugly Heart.

Battle's record company and management company issued a joint statement, saying: "We are deeply saddened by the tragic loss of Simone Battle of GRL.

"Simone was an exceptional young talent and human being, and we are all devastated to learn of her passing.

"Our thoughts and prayers are with her family and loved ones at this time."