James Corden says Paul McCartney got "cold feet" several times before he was convinced to join the segment filmed in the Beatle's native Liverpool
Ava DuVernay also explains how her show is a training ground for Black women.
Longoria was moved by her sister's reason for wanting to meet the pope.
“Treehouse of Horror XXXI,” which airs on Oct. 18 at 8 p.m. on Fox, opens with an election parody that’s not for the faint of heart.