Remembering Luke Perry. ET looks back at our time with the "Riverdale" and "90210" star and talks to the people who knew him best. The A-List celebrity throwing her surprise support for the two men who are accusing Michael Jackson of abuse in the new documentary, "Leaving Neverland." ET has reaction from both sides. Plus, Ben Affleck gets candid about being an alcoholic and how rehab is helping him get well. Then, Avril Lavigne talks about the health battle that left her bedridden for two years and her music comeback. Plus, planning play dates? Why the stars of "Suits" are all about Meghan Markle's baby. Entertainment Begins and Ends with ET.