Watch the ‘Mean Girls’ cast reunite for Walmart's Black Friday ad
'Mamma Mia 3' could be in the works, according to producer
Cher is releasing a whole album of ABBA covers
Cher is officially joining the cast of the 'Mamma Mia' sequel
A "Mamma Mia" movie sequel is in the works
Amanda Seyfried Has A Baby Girl
