If you see this bright yellow truck in your city consider yourself lucky. It's Third Man Records... on wheels!
Here's an article about the Third Man Rolling Store from Spinner:
"Consummate multi-tasker Jack White has a new project that will debut at SXSW, but it's not a band as you might expect. The man who recently broke up his most famous act, the White Stripes, has unveiled a vehicle for his Nashville-based Third Man record label that has been customized into a fully functional shop called the Third Man Rolling Record Store.
The bright-yellow truck has been equipped with a microphone and turntables for guest DJs to spin records inside the store, and a state-of-the-art sound system for bands to hook up, plug into and rock outside. Then there's the merch itself, a mix of limited-edition Third Man vinyl releases, Rolling Record Store t-shirts, tote bags and drinking accessories. At SXSW, the store is expected to host musical performances (including some surprise appearances), guest DJs and a slew of exclusive vinyl, such as four different tri-color releases. Following that, the store goes "on tour" to other upcoming festivals and concerts."
Also, the Third Man Record Rolling Store has an official Twitter account which you can find HERE.