The last time I saw Nellie McKay live, she was doing a manic one-woman musical about convicted 1950s murderer Barbara Graham—she has another show where she plays Rachel Carson. I left the theater convinced that I would never again be in the same room with as brilliant and talented a human being. Now she’s touring for her latest album, Home Sweet Mobile Home. She’s a wacked-out combo of syrupy sweet and totally deranged, she’s smart and funny as hell, and she clearly loves the stage. Don’t miss her live. (Jazz Alley, 2033 Sixth Ave,, 7:30 pm, $24.50, all ages)