Kendrick Lamar's third album, ‘To Pimp a Butterfly’ peaked at number one in countries all over the world, including the U.S. and the U.K., while boasting 5 hit singles!

Did you know that Pierce Brosnan signed for his role in “Mamma Mia!” without knowing what it would entail? Once he knew that he’d star opposite Meryl Streep, he was sold, having referred to her as “that gorgeous blonde I fancied terribly in drama school.”

Here’s some more juicy could-have-been casting gossip throughout the series: Gillian Anderson, of X-files fame, turned down an unspecified role in the show; Dominic West, of The Wire fame, also turned down a role that involved shooting in Iceland for six months; and Sam Claflin of The Hunger Games franchise auditioned for Jon Snow and Viserys Targaryen.