Why Justin Timberlake apologized to Britney Spears and Janet Jackson. Plus, more "Bachelor" backlash. The woman in the middle of the controversy speaks out. Then, Katy Perry, Luke Bryan, and Lionel Richie give ET an exclusive first look at the new season of "American Idol." And, is Katy Perry ready for baby #2? Plus, only we are with Snooki dishing about her new HGTV show. Then, ever wonder how your favorite star couples met? We've got the answers. And, we’re in Nashville with Clint and Lisa Black as guest co-hosts.