Everyone loves the "in-store performance." It's usually an up-and-coming artist, armed only with an acoustic guitar, going directly to the industry's ground zero: the point of sale. You hear said artist, you like, you buy. It draws media attention to the record store, because media and fans love the unusual and intimate setting of the "in-store." More importantly, it helps to animate the record store, to jar it out of the static, promotional marketplace and push it into the realm of performance. For one hour, the retail chain becomes a place where musicians not only posterize, they strum and sing and shake your hand. Off the Record didn't just get a four-color print of an infant bobbing for pool dollars-they got a heroin-eyed Kurt Cobain thrashing in their punk section. Earlier this year, Queens of the Stone Age turned Lou's Records into an acoustic desert-rock wonderland. Now Rhett Miller, the talented singer-songwriter and frontman for the Old 97's, will fill Borders with his alt-country-tinged pop gems. You will see, you will like, you may even buy.