Olivia Munn reveals an aggressive breast cancer diagnosis. The four surgeries she went through to save her life. Then, Christina Applegate on her MS battle. The symptoms she says she missed. And, remembering Matthew Perry, his stepdad and “Dateline” host, Keith Morrison breaks his silence. Plus, Paris Hilton’s family feud. Her heated message to her uncle Mauricio. Then, Ryan Gosling’s Oscar secret. How his young daughters helped him perfect his performance. And, Drew Barrymore channels Dwayne Johnson’s famous 80s look. Plus, why Lindsay Lohan’s new movie might be the last time we see her on screen for a while. Then, Beyonce’s country surprise. Is she performing at the CMT Awards? Exclusive reveals from nominee Mickey Guyton. And, our first look at Carol Burnett’s new murder mystery with “SNL” alum Kristen Wiig and Ricky Martin.