Bollywood meets Hollywood in a blockbuster wedding weekend for Nick Jonas and Priyanka Chopra. ET goes one-on-one with Cher. Why 2019 is going to be her biggest year yet! Plus, Katy Perry auctions off her man for a great cause. How the stars are getting creative to help victims of the California Wildfires. Julia Roberts shares secrets from her new movie, "Ben is Back." Megan Fox clears up a big rumor in an exclusive interview with ET. Entertainment Begins and Ends with ET.