The entire Mamma Mia cast sings in the film, enhancing their performances. Mamma Mia had the cast prerecord and sing live in order to keep the music consistent. Meryl Streep and Amanda Seyfried both discussed their enjoyment of singing in Mamma Mia, citing how it helped them immerse themselves.

Mamma Mia! has some of movie musical's most iconic songs, but audiences have wondered if they were really sung by the stars, including Meryl Streep and Amanda Seyfried. Mamma Mia's heartwarming story has entertained fans for years since its theatrical debut in 2008, partly due to Streep's status as an entertainment triple threat. Seyfried's performance adds to the film's appeal, carrying both the story and the music throughout the years.

Mamma Mia!'s music, written by Swedish pop group Abba, gave it a unique musical tone that carried over from its original Broadway show. Though Mamma Mia 3 updates are few and far between,...