myspace.com/markmulcahy​Mark Mulcahy isn't a household name, but he should be. In the '80s, the singer-songwriter fronted Miracle Legion, a Connecticut jangle-pop act that managed to transcend early comparisons to R.E.M. and evolve into a pretty solid original rock band. In the '90s, Miracle Legion -- or, rather, Mulcahy and the band's then-rhythm section-- morphed into Polaris, who you might know as the house band on the Nickelodeon cult show The Adventures of Pete & Pete. (Fun fact: RFT