Her memoir’s called A Little Bit Wicked, and that’s always been the secret to Kristin Chenoweth’s charm; she may look like a little blonde princess, but her sweetness has an edge. A character actor in the body of an ingenue — an ingenue with a glorious coloratura soprano, that is — she can do and has done just about anything on stage and screen, from Wicked to Glee, from The West Wing to Pushing Daisies, and she can bring both elation and heartbreak to any song she sings. An Intimate Evening with Kristin Chenoweth, 5/17, 8 p.m., Ruth Eckerd Hall.