In one of her routines, burlesque dancer Lilly Rascal strips to the Coaster’s groovy tune “Down in Mexico,” shaking her ass and doing the splits as she teases the crowd. It’s a good example of what a terrific dancer she is. Rascal, who also does a bit of modeling, headlines tonight’s fourth annual Sweetheart Showcase. Contortionist Apathy Angel, an actress who’s had roles in several films, will be on hand as will Bella Sin, Rubi Solitaire and Doll Bambino. Abby Downton hosts. The event starts at 9 p.m. at the Beachland Ballroom and tickets range from $17 to $30. (Niesel)