If you caught Philadelphia Weekly‘s Concerts in the Park show with Ground Up backed by The Lawsuits last August, you know the unexpected pairing of a hip-hop duo and roots-informed rockers worked in a big way. Today, we have further evidence for those who could not attend the show (or were unsatiated by the shaky YouTube documentation of the night). The band recorded a HotBox Session at Sigma Sound Entertainment, playing the riffy and rollicking “Late Night Special,” which you can watch in the YouTube video below. Crank your headphones, check the video out and keep your fingers crossed that this pairing plays for the public again soon. In the meantime, The Lawsuits are one of a bazillion awesome Philadelphia acts on the World Cafe Live bill tonight to perform Beck’s Song Reader. Tickets and more information on that show can be found here.