Katy Perry Uses Truck to Promote Album, 'Collaborating' with John Mayer

July 31, 2013 AT 8:48 AM
Katy Perry is promoting her upcoming album, 'Prism,' with a gold-plated semi-truck that's driving around the country. The singer is encouraging fans to take photos of the gilded truck and post them to Twitter. Kristina Behr has more on the golden truck plus the latest on whether John Mayer will be featured on any tracks.