Young pianist/vocalist Jamie Cullum, made a sizeable splash in a post-Norah Jones world of jazz-influenced, acoustic-leaning singer/songwriters. Whether he's performing "Singin' in the Rain" in a Stevie Wonder style or channeling Jimi Hendrix through Stax via Van Morrison on "Wind Cries Mary," Cullum helps to redefine interpretive singing in the early 21st century on TWENTYSOMETHING. (Who says you can't play a convincing cover of Radiohead's "High and Dry" based on an Ahmad Jamal line?) There is nothing slavish about Cullum's approach, as his soulful swinging and slightly ragged-edged crooning reveal a very musical soul. Playing off Cullum's charming presence, Stewart Levine uses analog production to give the proceedings a deep, warm glow.