The 'Roar' hitmaker performed at the big US football game in Arizona and some of the instruments used by her band have been donated to help anti-domestic abuse charity Break The Cycle.
"Guys! Want the guitars that my band will be playing at #Sb49? Bid now to benefit @BreaktheCycleDv," Perry wrote.
Bids for the 74 American Vintage Jazz bass and Fender American Standard Stratocaster guitars stood at around USD 800 each. The auction ends on February 15.