We’ve seen this musical before, and it was so much fun. We began clapping and tapping our feet with the music, which is normally something we try to avoid, because it makes us look like an idiot. But it was worth it. Mamma Mia! is the story of a mother, her soon-to-be-wed daughter, and the yet-to-be-identified father. Bonus: the soundtrack is full of ABBA songs such as “Dancing Queen” and “Knowing Me, Knowing You.” Aug 18–30. Check web site for times. www.dallassummermusicals.org.