Once upon a time, the cast of Mamma Mia! Here We Go Again was young and sweet (only seventeen...). This was back in 2008 when multi-Oscar winner Meryl Streep, then-Mean Girls starlet Amanda Seyfried, Colin Firth, Pierce Brosnan, Stellan Skarsgård, Christine Baranski and Julie Walters came together like lightening in a bottle for the first Mamma Mia! film—which quickly turned the beloved jukebox musical into a bona fide pop culture phenomenon.

It's been ten years since that first film hit theaters, and in the past decade, much has changed for the stars of Mamma Mia!, who also star in this year's highly anticipated follow-up, Mamma Mia! Here We Go Again.

Below, see what the film cast of Mamma Mia! looked like ten years ago in 2008 compared to today.

The Cast of Mamma Mia! Then & Now

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