The unlikely pairing blast out a version of Aerosmith's classic 'Walk This Way'...

BRITNEY SPEARS joined AEROSMITH onstage at the SUPERBOWL American football finals in FLORIDA on Sunday (January 28).

The pop princess joined them for a version of their classic ‘Walk This Way’. Aerosmith collaborated with Run DMC on the same track in 1986, acheiving a Top Ten hit.

Britney also joined *N Sync star boyfriend Justin Timberlake onstage for the star-studded half-time performance.

She was joined at the extravaganza at the Raymond James Stadium in Tampa by pop elite, including Jennifer Lopez and Mary J Blige.