Selma Blair's first interview since revealing she has MS. Why she's now calling her diagnosis a relief. And how she went from self-medicating to being a powerful role model! Then, everyone is still talking about Lady Gaga and Bradley Cooper's performance at the Oscars, but what were they whispering about? ET can now tell you what was said as Bradley's ex-wife weighs in! Plus, Kabloom engagement scoop straight from Katy Perry! Then, the Jolie-Pitt kids all grown up! And, everything ET knows about Janet Jackson's Las Vegas take over! Then, ET's with Jennifer Lopez to get details on the new season of "World of Dance!" Entertainment Begins and Ends with ET.