Randy Newman has donated a song to Jack Pack.

The six-time Grammy award-winning singer and composer has allowed the swing band - who shot to fame after coming fourth on 'Britain's Got Talent' last year - to record 'Forever' and is very impressed by their version of the track.

He said: ''I really like what Jack Pack did with my song, Forever. It's never been recorded before and it's one of the best recordings I've heard of one of my songs. I hope it doesn't end their career.''

The quartet - who signed a record deal with Simon Cowell's Syco shortly after the contest ended - are currently working hard with producer Future Cut on their debut album, which will be released on June 29.

They tweeted last week: ''Working hard or hardly working? The answer is definitely working hard!

''We're all enjoying a drink tonight after a busy week putting the finishing touches to our vocals for the album...''

And Randy isn't the only collaborator the group - comprising Martin McCaffrey, Sean Ryder Wolf, Alfie Palmer and Andrew Bourn - have worked with on the record.

They tweeted last month: ''Working with a 72 piece orchestra is pretty amazing!! We can't wait for you to hear the album #JackPackAlbum (sic)''

'Forever' will be released as a single later in the year.