Madonna, Nicki Minaj and MIA are gearing up to perform at the Super Bowl half time show.

The Material Girl won't be paid for her performance though -- according to Forbes magazine, she'll follow in the footsteps of the Black Eyed Peas and other halftime acts and will play for free.

It's all about the exposure: more than 110 million people are expected to tune in and Madonna has a new album out next month.

Her first single, "Give Me All Your Luvin,'" also features Minaj and MIA.

Cee-Lo Green, of 'Forget You' fame, is also rumoured to be performing.