Karr is an MC with the groups the Elements and the 12 to 6 Movement, and travels all over the world working the merch table for west-coast rock group Bullets and Octane, whose vocalist grew up in St. Louis. He modeled the hip-hop night after Blueberry Hill's now-defunct the Science and Monday staple the Hi-Pointe Café (now located at M.P. O'Reilly's), and picked the spot because, well, it's a few blocks away from where he lives with his parents.
He co-founded the evening with Liz Becker, a bartender at Just Bill's Place who mentions that graffiti artists are welcome to come in and decorate the joint's largely barren walls. (She also makes a mean house-specialty shot, which looks and tastes something like Robitussin.) Karr hosts the show with Gravy, his hype man who dresses like a prep-student and generally does a good job keeping things loose. More than anything, Just Bill's Basement is about getting silly, making it a nice contrast to the more serious vibe at Hi-Pointe Café Mondays.