Axl Rose and Billy Joel in the same sentence might seem strange, but the two icons in their own right seem to get along very well indeed.

This was borne out by Rose appearing at Joel's gig on July 28 to sing renditions of AC/DC's 'Highway To Hell' and Joel's 'Big Shot' in Minneapolis, Minnesota.

Rose was in town for Guns 'n' Roses' Minneapolis gig on July 30.

Watch the two best pals sing their guts out here: