Katy Perry puts tour trampoline up for auction

Katy Perry has put a trampoline from her recent tour up for auction.

The singer posted her latest donation to the Japan Red Cross relief effort on Twitter this morning (12.04).

'I'm donating my CUPCAKE trampoline from the #CALIFORNIADREAMSTOUR for JAPANREDCROSS and the auction is LIVE here: http://bit.ly/tFCsi' she wrote.

Perry joined a host of artists in donating personal items to help victims of the recent earthquake and tsunami last week.

Their record label EMI, is matching all funds raised from the three week auction.