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To put it bluntly, Har Mar Superstar (aka Sean Tillmann) is a balding, out-of-shape white man with a pencil-thin moustache who croons sex-laden R&B tunes while breakdancing. His live shows, sung to the backing of a small boombox, usually culminate in Har Mar stripping down to his underwear (often of the tighty whitey variety). That's only part of the story, though, for he also happens to sing well and write some fine tunes. In fact, he has penned songs for Jennifer Lopez and Kelly Osbourne; the latter was also his date for the 2002 MTV Video Music Awards. He was also picked up by the major label Warner Bros. for his sophomore effort, You Can Feel Me, and tapped to open shows for the Strokes and Incubus in sizable venues. In another incarnation, the St. Paul, MN, native is known as the cult indie rocker Sean Na-Na. He first emerged as a recording artist in the St. Paul band Calvin Krime in the late '90s; his self-titled debut as Har Mar Superstar emerged in 2000, launching his libidin...