Side PonyCentered on the warm, highly resonant vocals of Rachael Price, Boston's Lake Street Dive began their career as an eclectic, adventurous quartet just as likely to play a twangy, Fleetwood Mac song or a Hall & Oates cover as any of their own soulful, jazz and R&B influenced originals. However, since their 2010 eponymous debut, Lake Street Dive, which also features guitarist trumpeter Mike Olson, bassist Bridget Kearney, and drummer Mike Calabrese, have