Broadway at the Bass: Mamma Mia! brings the feel-good musical to Bass Performance Hall in Fort Worth for a run in early December. Set on a sunny Greek island, the story follows a mother, her daughter and three possible dads, all woven together with the timeless hits of ABBA. It's a tale of love, friendship and identity that has charmed audiences around the world for more than 25 years. Bass Performance Hall is a grand, elegant theater downtown, so it feels like a special night out.