London, Mar 23 : Troubled pop star Amy Winehouse has reportedly been ordered to come up with a new set of songs for her new album after music bosses were left unimpressed by her latest offering.

The `Rehab' hitmaker recorded a number of demo tracks for her highly anticipated third album during a three-month hiatus on the Caribbean island of St. Lucia earlier this year (09).

However, her efforts haven''t hit the mark with bosses at the star''s label.

"Amy was very productive during her stay in St Lucia. She wrote a hell of a lot of songs, but the majority of them just aren't hitting the mark," the Sun quoted a source, as saying.

"She seems to have ditched her trademark vintage soul sound and is now heavily influenced by reggae. Her bosses don't think it's a wise move to change her style so sharply and have told her that," the source added.

Winehouse, who thrilled her fans with hits like `Back to Black', has mostly written grim songs, focusing on her split from husband Blake Civil Fielder.

"The lyrics are very dark indeed. While she's known for her confessional style and has been very successful with it, many of the tracks are near the knuckle," the source said.

"Everyone understands that Amy is an artist and she must be true to her instincts. In the past, she's written frequently about broken hearts and boyfriends, but this time round she's delving into harrowing terrain," the source added.

According to the source, Winehouse, whose last major hit was in 2006, cannot afford to take the risk of jeopardizing her forthcoming album with less entertaining songs.

"If she puts out a record that is in any way half-baked, that could severely damage her long-term prospects, so everyone's focus at the minute is getting it right, even if that means telling Amy some things she probably won't want to hear," the source said. (ANI)