Paolo Nutini - Paolo Nutini's Mouthy Competition

Paolo Nutini thinks Mick Jagger is a "force of nature".

The 'Pencil Full of Lead' singer was thrilled to duet with the legendary Rolling Stones frontman at the Isle of Wight Festival in 2007 but admits they did not take the event seriously because they were too busy having a competition to see who had the most stretchy lips.

He joked: "Yeah, that was a biggie. Just to see who could get their mouth furthest around the microphone! Seriously, though, he's something else. He was a force of nature.

"He's that perfect mix between a hard-working musician and a live wire animal."

Although his second LP 'Sunny Side Up' - which was released in May this year - went straight to the top of the UK album charts, the Scottish musician remains modest about his success.

He told BBC News: "Well, I think the moment you become proud you're leaving yourself open for a big reality check. There's always somebody better - or somebody that's achieved more. You've always got something to reach for."

Paolo's new single 'Pencil Full of Lead' is out on November 2.