Zac Efron says he '100 percent' believes in love at first sight

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It turns out that Zac Efron is really a romantic at heart.

The 27-year-old actor spoke with ET at Thursday's premiere of his new film We Are Your Friends in Hollywood, where he shared a small piece of his philosophy on love.

When asked if he believed in love at first sight, Zac said, "100 percent. It's a good thing to believe in."

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That must be nice to hear for Zac's reported girlfriend Sami Miro!

Sami was recently seen with Zac in Hawaii while the star was filming Mike and Dave Need Wedding Dates, where they hung out on the beach and even went jogging.

According to Zach, it was jogging that helped him lose 10 pounds for his role in We Are Your Friends, in which he plays a DJ.

Photos of Zac Efron from over the years:

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Zac Efron says he '100 percent' believes in love at first sight
WESTWOOD, CA - APRIL 28: Actor Zac Efron attends Universal Pictures' 'Neighbors' premiere at Regency Village Theatre on April 28, 2014 in Westwood, California. (Photo by Jason Merritt/Getty Images)
NEW YORK, NY - MAY 07: Zac Efron visits 'The Tonight Show Starring Jimmy Fallon' at Rockefeller Center on May 7, 2014 in New York City. (Photo by Theo Wargo/NBC/Getty Images for 'The Tonight Show Starring Jimmy Fallon')
LOS ANGELES, CA - APRIL 28: Actor/producer Seth Rogen (L) and actor Zac Efron pose at the after party for the premiere of Universal Pictures' 'Neighbors' at The Armand Hammer Museum on April 28, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)
WESTWOOD, CA - APRIL 28: Actor Zac Efron attends Universal Pictures' 'Neighbors' premiere at Regency Village Theatre on April 28, 2014 in Westwood, California. (Photo by Kevin Winter/Getty Images)
LOS ANGELES, CA - APRIL 13: Actor Zac Efron accepts the Best Shirtless Performance award for 'That Awkward Moment' onstage at the 2014 MTV Movie Awards at Nokia Theatre L.A. Live on April 13, 2014 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for MTV)
LOS ANGELES, CA - APRIL 13: Actor Zac Efron attends the 2014 MTV Movie Awards at Nokia Theatre L.A. Live on April 13, 2014 in Los Angeles, California. (Photo by Michael Buckner/Getty Images)
HOLLYWOOD, CA - MARCH 02: Actor Zac Efron backstage during the Oscars held at Dolby Theatre on March 2, 2014 in Hollywood, California. (Photo by Christopher Polk/Getty Images)
Actor Zac Efron arrives on the red carpet for the 86th Academy Awards on March 2nd, 2014 in Hollywood, California. AFP PHOTO / Robyn BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
LOS ANGELES, CA - JANUARY 27: Actor Zac Efron arrives to the premiere of Focus Features' 'That Awkward Moment' at Regal Cinemas L.A. Live on January 27, 2014 in Los Angeles, California. (Photo by Alberto E. Rodriguez/Getty Images)
NEW YORK, NY - JANUARY 22: Actor Zac Efron attends the 'That Awkward Moment' screening at Sunshine Landmark on January 22, 2014 in New York City. (Photo by Cindy Ord/Getty Images)
SAN FRANCISCO, CA - JANUARY 14: Michael B. Jordan, Miles Teller and Zac Efron tour the Twitter headquarters on January 14, 2014 in San Francisco, California. (Photo by Kimberly White/Getty Images for FilmDistrict)
Actor Zac Efron attends the Los Angeles Lakers vs Minnesota Timberwolves NBA game at Staples Center on December 20, 2013 in Los Angeles, California. AFP PHOTO / Robyn Beck (Photo credit should read ROBYN BECK/AFP/Getty Images)
NEW YORK, NY - APRIL 19: Actor Zac Efron attends the 'At Any Price' New York premiere during the 2013 Tribeca Film Festival on April 19, 2013 in New York City. (Photo by Stephen Lovekin/Getty Images for Tribeca Film Festival)
AUSTIN, TX - MARCH 16: Actor Zac Efron speaks at the screening for 'At Any Price' during the 2013 SXSW Music, Film + Interactive Festival at the Paramount Theatre on March 16, 2013 in Austin, Texas. (Photo by Michael Buckner/Getty Images for SXSW)
TORONTO, ON - SEPTEMBER 14: Actor Zac Efron attends the 'The Paperboy' premiere during the 2012 Toronto International Film Festival on September 14, 2012 in Toronto, Canada. (Photo by Jemal Countess/Getty Images)
TORONTO, ON - SEPTEMBER 09: Zac Efron signs autographs at the 'At Any Price' premiere during the 2012 Toronto International Film Festival at the Princess of Wales Theatre on September 9, 2012 in Toronto, Canada. (Photo by Mark Davis/Getty Images)
VENICE, ITALY - AUGUST 31: Actor Zac Efron attends the 'At Any Price' premiere during the 69th Venice Film Festival at the Palazzo del Cinema on August 31, 2012 in Venice, Italy. (Photo by Gareth Cattermole/Getty Images)
US actor Zac Efron arrives for the screening of 'At any price' during the 69th Venice Film Festival on August 31, 2012 at Venice Lido. 'At any price' is competing for the golden Lion in the Venezia 69 section of the festival. AFP PHOTO / GABRIEL BOUYS (Photo credit should read GABRIEL BOUYS/AFP/GettyImages)
VENICE, ITALY - AUGUST 31: Actor Zac Efron attends the 'At Any Price' premiere during the 69th Venice Film Festival at the Palazzo del Cinema on August 31, 2012 in Venice, Italy. (Photo by Gareth Cattermole/Getty Images)
HOLLYWOOD, CA - JUNE 08: Actors Zac Efron and Ashley Tisdale arrive at the premiere of Warner Bros. Pictures' 'Rock of Ages' at Grauman's Chinese Theatre on June 8, 2012 in Hollywood, California. (Photo by Frazer Harrison/Getty Images)
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"The moment I signed up for the movie, I wasn't possessing the physicality of a DJ," Zac told ET, explaining his motivation for slimming down. "They sit behind their computers and they are not, I guess, built. So I just started running every day."

While 10 pounds might not sound like a lot, it's a big life change for an actor who's known for his formidable physique.

"I am very motivated when I go for it," Zach said.

We Are Your Friends hits theaters Aug. 28.

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