Dwayne ‘The Rock’ Johnson

In an interview with Vice in June 2016 the actor and former professional wrestler said, “I believe that we’re not the only ones; it’d be arrogant to think that.”

Katy Perry

LOS ANGELES – FEBRUARY 12: Katy Perry on the Red Carpet at THE 59TH ANNUAL GRAMMY AWARDS, broadcast live from the STAPLES Center in Los Angeles, Sunday, Feb. 12 (8:00-11:30 PM, live ET/5:00-8:30 PM, live PT; 6:00-9:30 PM, live MT) on the …

“I believe in aliens,” the singer told GQ in January 2014. “I look up into the stars and I imagine how self-important are we to think that we are the only life form.”

Alicia Keys

LOS ANGELES – SEPTEMBER 21: Alicia Keys performs “Underdog” on The Late Late Show with James Corden airing Thursday, September 24, 2020. (Photo by Terence Patrick/CBS via Getty Images)

In October 2013 Keys told BuzzFeed, “I’m sure you’ve seen a UFO, haven’t all of us seen something flying in the sky, and it’s at some random time of night that doesn’t make sense and it’s not the shape of a plane?”

Keanu Reeves

HOLLYWOOD, CALIFORNIA – FEBRUARY 09: Keanu Reeves attends the 92nd Annual Academy Awards at Hollywood and Highland on February 09, 2020 in Hollywood, California. (Photo by Jeff Kravitz/FilmMagic)

When asked during a 2008 Boston.com interview if he thinks there are advanced extra-terrestrial life forms in the cosmos, Keanu replied: “I think it more likely than not. The cosmos is a pretty big place.”

Nick Jonas

THE VOICE — “Finale Part 1” Episode 1813A — Pictured in this screen grab: Nick Jonas — (Photo by: NBC/NBCU Photo Bank via Getty Images)

While on “Late Night With Seth Meyers” in 2015, Nick Jonas shared his UFO encounter. “When I was 14 maybe, I was in my backyard playing basketball with some friends and I looked up in the sky, and there was three flying saucers,” Jonas told Meyers.

Jonas said he then looked it up online and encountered posts about similar sightings. “So I’m a firm believer in aliens.”