The Stepkids new video for "Legend in My Own Mind" reminds us of the year we went to a Halloween party dressed as one of the Beastie Boys. We didn't win a prize and got mad tired of lugging around a boombox all night. Here, the star of the video (played by NYC comedian Kurt Braunohler) takes a CD from a street hustler (The Daily Show's Wyatt Cenac) -- "C'mon, my man.  You tellin' me you don't like hip-hop?" -- and slips into another world. The Stepkids are a group of talented back-up and studio players who have a good-thing-going as a trio with roots and an eclectic soul/R&B sound.  They're playing a free show tonight, October 18, 7:30 p.m. at the Apple store over on West 14th Street plus tons of other shows during CMJ.  Their website has all the details.