Katy Perry Super Bowl guitars up for auction

Two guitars used during Katy Perry's Super Bowl half-time performance have gone up for auction to raise money for charity.

The Roar hitmaker performed at the big football game in Arizona on Sunday (01Feb15) and some of the instruments used by her band have been donated to help anti-domestic abuse charity Break The Cycle.

In a post on Twitter.com ahead of the Super Bowl, Perry wrote, "Guys! Want the guitars that my band will be playing at #SB49? Bid now to benefit @BreaktheCycleDV."

Bids for the 74 American Vintage Jazz bass and Fender American Standard Stratocaster guitars stood at around $800 each as WENN went to press. The auction ends on 15 February (15).