Mamma Mia! closes the Palace Theatre’s 2025-2026 season with glittering energy and enthusiasm! The musical has begun its highly anticipated sold-out run, and audiences lucky enough to snag tickets will be treated to standout performances, an impressive ensemble, and an entirely entertaining night. The cast dances in 'Mamma Mia!' Photo by Ross Davidson. The songs of Swedish pop group ABBA continue to light up dance floors and draw devoted fans, perhaps nowhere better than in M