Justin Timberlake has reportedly infuriated his 'N Sync bandmates by allegedly pulling out of their next album. Sources claim the pop heartthrob - who has enjoyed huge chart success with his solo album, 'Justified' - has refused to reunite with Lance Bass, Joey Fatone, JC Chasez and Chris Kirkpatrick on a new record. An insider told America's People magazine: "Justin said he's not in the mood and doesn't think it will work. He doesn't want any part of it." Justin's bandmates are said to be furious at his decision. The source added: "They aren't really talking to Justin. They haven't taken it so well." However, the rest of the band insist they have not split up. Joey said recently: "We're not broken up. We didn't split apart from the group. As for an album, it may come tomorrow, maybe a year from now, maybe two years. It depends but we are definitely going be doing an album.

We just need to find out when." 'N Sync were briefly reunited last month. but only to sing America's national anthem. The hunky stars were together for the first time in over 18 months at an event to raise money for their Challenge for the Children charity.

The group sang 'The Star-Spangled Banner' before competing in a celebrity basketball match. Over the past year and a half, Justin and JC have been working on solo pop careers, while Joey has appeared in the movie 'My Big Fat Greek Wedding' and Lance trained to become an astronaut.

Meanwhile, representatives for Justin Timberlake and girlfriend Cameron Diaz have denied rumours they have got engaged.