ET Backstage Exclusive! Jennifer Lopez, Selena Gomez, H.E.R., Dave Grohl. Everything we know about the “VAX Live: the concert to reunite the world.”

Plus, “Live from New York, It’s a Saturday Night Live controversy.” What has the cast divided before this weekend’s show?

Our Tom Selleck “Blue Bloods” exclusive. What you never knew about his iconic roles. Vin Diesel and Helen Mirren take us exclusively behind the scenes of “F9”.

ET’s hanging in “The Hamptons” with Christie Brinkley and her two girls for Mother’s Day. Only ET is at home with “Heart’s” hitmaker Nancy Wilson.

Plus, how Tiffany Haddish and Billy Crystal teaming up for their latest project.