Street Art Fair attendees who haven't previously seen a bike that's custom-made to haul around a piano — and I'm guessing that several people fall into this category — get their chance when local boogie-woogie pianist Mark Lincoln Braun, better known as Mr. B, performs on his Joybox Express.

This summer, Braun crossed the state with his piano, playing gigs (planned and unplanned) at stops along the way while also raising money for children's art and athletic organizations. He traditionally plays throughout the Street Art Fair on North University Avenue.

Jenn McKee is the entertainment digital journalist for AnnArbor.com. Reach her at jennmckee@annarbor.com or 734-623-2546, and follow her on Twitter @jennmckee.