Howard talks to Tina Fey about hosting "Saturday Night Live," Oscar afterparties and her movie "Whiskey Tango Foxtrot."

Howard talks to Robert Downey Jr. about his musical ambitions, "Iron Man" and "Captain America: Civil War."

Howard talks with Steve Miller about writing hit music, recording with Paul McCartney and his views on the Rock and Roll Hall of Fame.

Howard talks to Seth Rogen about his early stand-up career, the intricacies of the entertainment industry and the creation of his animated film, "Sausage Party."

Howard talks to Metallica about the band's collaborative process, continued success, and the album, "Hardwired to Self-Destruct."