The UK's top two girl groups, Girls Aloud and Sugababes, have teamed up to record a cover of the classic 80's track, Walk This Way.

A massive hit in 1986 for American rockers Aerosmith and rappers Run DMC, this new collaboration between the girl bands is in support of Comic Relief's Red Nose Day 2007.

The official video parodies the original Aerosmith and Run DMC video, with the two groups practising in studio room opposite each other... eventually breaking the walls between the rooms with a mic stand.

The Girls Aloud vs Sugababes version of Walk This Way will be released in the UK on March 12th, in support of the 2007 Comic Relief fundraiser...