Amanda Seyfried has fans saying mamma mia with her latest musical cover. The superstar actress appeared Tuesday on the Jimmy Fallon's 'Tonight Show' to promote her new Peacock show 'Long Bright River.

On a recent visit to The Tonight Show, Amanda Seyfried shed light on some of her confirmed (and rumored) projects including ...

Amanda Seyfried Sounds Eerily Like Joni Mitchell Singing Her Song 'California' Amanda Seyfried Discovers Her Third Great-Grandfather Was Brutally Murdered: 'How Dare They!' (Exclusive) Michele ...

Amanda Seyfried opens up about Peacock's "Long Bright River," her 40th birthday plans and what song she most wants to hear in "Mamma Mia 3." ...

Amanda Seyfried is often praised for nailing both comedic and dramatic roles, with films like Mean Girls and First Reformed ranking among her best.