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WATCH: Princes William and Harry open up about their last phone call with Princess Diana

Plus, Sir Elton John speaks out about the legacy of Princess Diana's charity work in a new documentary.

WATCH: Ben Affleck, Gal Gadot will return in superhero sequels

Lara Spencer reports the buzziest stories of the day in "GMA" Pop News.

WATCH: Paula Patton dishes on ‘Somewhere Between’ live on ‘GMA’

The actress opens up about the new supernatural series on ABC that follows a time-travelling journalist.

WATCH: Rob Lowe’s sons spill secrets on their thrill-seeking famous dad

The actor and his sons, Matthew and John Owen, explore unsolved mysteries and the supernatural world in a reality-TV series "The Lowe Files."

WATCH: Olympian Michael Phelps races a great white shark

The 23-time Olympic gold medalist lost to the shark by two seconds in a simulated race that aired on The Discovery Channel.

WATCH: Bachelorette Rachel Lindsay presses suitor on his hesitations about marriage

Rachel Lindsay has a frank conversation with suitor Peter Kraus during the show's finale about her wanting to be engaged.

WATCH: William and Harry open up about Princess Diana in new documentary

The princes spoke out about their late mother 20 years after she died in a car accident.

WATCH: Michael Phelps to race great white to kick off ‘Shark Week’

Adrienne Bankert reports the buzziest stories of the day in "GMA" Pop News.

WATCH: Stars come out for Comic Con

The stars of "Justice League", "Infinity War" and "Blade Runner 2049" were among the panelists at the San Diego Comic Con.

WATCH: Four-day Comic-Con convention kicks off this weekend in San Diego

Die-hard comic book fans, movie enthusiasts and TV binge watchers get tons of sneak peeks about what's to come in print, on TV and at the movies.

WATCH: Justin Bieber banned from performing in China

ABC News' Adrienne Bankert reports the buzziest stories of the day in "GMA" Pop News.

WATCH: Zedd wows the Central Park crowd with his hit ‘Adrenaline’

The DJ and producer rocks out to his hit song live on "GMA."