Bass solo at Worldfest.
Ben Harper covering a Peter Tosh song, 'You Can't Blame the Youth.' Rock Deadrick on drums, Leon Mobley on percussion, Mark London Sims on bass.
Joe Caploe and Leonice Shinneman play a Mark London Sims composition, 'Permission Granted.'
Mark London Sims' bass solo on "Agent Double OO Soul" with The Untouchables at the Yucca Tap Room in Phoenix AZ. 10-14-17.
Jacquelyn Levy intro duet with Mark London Sims on Fretless Bass.