You'll be able to sing,' " she recalled telling Streep ... Related: Colin Firth Admits He Was 'Awestruck' Watching Cher in 'Mamma Mia! Here We Go Again' Mamma Mia! Here We Go Again served as ...

Amanda Seyfried dreams of singing the title song in a Mamma Mia film Amanda Seyfried is open ... a relentlessly sunny musical romp: EW review Cher was in an ABBA music video and more fun reveals ...