Katy Perry is pulling out all the stops to promote 'Prism' -- literally! The 'ROAR' singer takes a hands on approach to album sales in a new commercial for her third album's Wal-Mart exclusive edition.

The songstress, in silhouette, pulls up to a Wal-Mart loading dock in her shiny gold 'Prism' truck. She takes a shipment of her zine edition albums into the store on a dolly, rocking a purple jumpsuit with the 'Prism' logo emblazoned on the back, tiger striped nails and a bright blue hat. She strolls past her video for 'ROAR' blaring from every TV in the store as two fans pick up copies and tune in to Monster N-Tune Candy headphones.

She surprises the girls with a greeting and leaves them shocked and awed -- and then it's on to the next stop.

It's a cute clip that shows just how commercially viable, saccharine sweet and adorable Katy Perry is. And since Wal-Mart is notoriously conservative, the sponsorship also appeals to her Christian roots and album's quiet spiritual themes. It may be the most unintentionally honest portrayal of Perry ever.