The Hype: Playing a sold-out show presented by public radio station KCRW at the Anaheim House of Blues is a far cry from her days as resident musician at Los Angeles club Hotel Cafe. Back then, alt-country songstress Brandi Carlile would be lucky to play for a room of 20 people. How times have changed. With five records under her belt, one of them, the EP XOBC, just released in February,Carlile has developed quite a rabid following. Though I had never seen her perform before, the collective anticipatory chants of “Brandi, Brandi, Brandi,” before she took the stage piqued my curiosity.