EXCLUSIVE: Dwayne Johnson drops everything to comfort girlfriend after her father dies: He was 'my second dad'


Family comes first for Dwayne Johnson.

The 44-year-old actor dropped everything to be by girlfriend Lauren Hashian's side after her father, Sib Hashian, died suddenly, ET has learned.

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Johnson was in Las Vegas shooting his HBO series, Ballers, when he got the news, a source tells ET, adding that the action star immediately jumped on a plane to be by Lauren's side.

The father of two later took to Instagram to pay tribute to Sib, who was the drummer for the band Boston, calling him his "second dad."

"Rest In Peace & Love to my second dad Sib Hashian," Johnson began his touching post. "Don't know why things have to happen the way they do sometimes. When loved ones leave us so suddenly without having a chance to say goodbye. Perhaps the lesson here is the reminder to live our lives as full and as present as we possibly can, because we just never know what's around the corner."

"What a full and exciting life this man lived. What an amazing family he created, loved, watched over and protected," he continued. "Being on stage, in front of adoring fans, friends and family. Keeping the beat one last time. Your passing in this manner is extremely poetic and somehow beautiful."

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"Thank you for the many life lessons you've taught over the years. Grateful," he concluded. "We love you Sib. We miss you. Yhmwitcoltroml. 'Hasan burgers' for everyone in heaven."

WATCH: Dwayne Johnson Goes on Adorable Father-Daughter Date With Eldest Child Simone at People's Choice Awards

While Sib was like a father to Johnson, he's also close with his own dad, Rocky.

For Christmas, the former WWE star gifted his dad with a new car, later taking to Instagram to share Rocky's inspiring story.

PHOTOS: The Rock through the years

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ANAHEIM, CA - AUGUST 14: Actor Dwayne Johnson of MOANA took part today in 'Pixar and Walt Disney Animation Studios: The Upcoming Films' presentation at Disney's D23 EXPO 2015 in Anaheim, Calif. (Photo by Jesse Grant/Getty Images for Disney)
HOLLYWOOD, CA - MAY 26: Actor Dwayne 'The Rock' Johnson arrives at the Premiere Of Warner Bros. Pictures' 'San Andreas' at TCL Chinese Theatre on May 26, 2015 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
CULVER CITY, CA - JUNE 06: Actor Dwayne Johnson accepts the Troops' Choice award onstage during Spike TV's Guys Choice 2015 at Sony Pictures Studios on June 6, 2015 in Culver City, California. (Photo by Kevin Winter/Getty Images for Spike TV)
GOLD COAST, AUSTRALIA - APRIL 14: (EUROPE AND AUSTRALASIA OUT) Dwayne Johnson, aka 'The Rock', is seen after a work-out at World Gym, Ashmore on April 14, 2014 on the Gold Coast, Australia. (Photo by Richard Gosling/Newspix/Getty Images)
BERLIN, GERMANY - AUGUST 21: Actor Dwayne Johnson attends the press conference of Paramount Pictures 'HERCULES' at Hotel Adlon on August 21, 2014 in Berlin, Germany. (Photo by Andreas Rentz/Getty Images for Paramount Pictures)
SAN DIEGO, CA - JULY 24: Actor/wrestler Dwayne 'The Rock' Johnson attends the 'Hercules' panel at the Paramount Studios Presentation - Comic-Con International on Day 1 held at San Diego Convention Center on July 24, 2014 in San Diego, California. (Photo by Albert L. Ortega/Getty Images)
HOLLYWOOD, CA - JULY 23: Actor Dwayne Johnson arrives at the Los Angeles Premiere of 'Hercules' at TCL Chinese Theatre on July 23, 2014 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
THE TONIGHT SHOW STARRING JIMMY FALLON -- Episode 0091 -- Pictured: (l-r) Actor Dwayne Johnson and host Jimmy Fallon during the 'Pomanti Brothers Fitness Video' skit on July 22, 2014 -- (Photo by: Douglas Gorenstein/NBC/NBCU Photo Bank via Getty Images)
NEW YORK, NY - JULY 22: Actor Dwayne Johnson visits 106 & Park at BET studio on July 22, 2014 in New York City. (Photo by Bennett Raglin/BET/Getty Images for BET)
LOS ANGELES, CA - JULY 17: Dwayne Johnson speaks onstage during the Nickelodeon Kids' Choice Sports Awards 2014 held at Pauley Pavilion on July 17, 2014 in Los Angeles, California. (Photo by Michael Tran/FilmMagic)
LONDON, ENGLAND - JULY 02: Dwayne Johnson attends a photocall for 'Hercules' at Trafalgar Square on July 2, 2014 in London, England. (Photo by Dave J Hogan/Getty Images)
MIAMI, FL - APRIL 13: Dwayne Johnson at the 'Pain & Gain' Press Conference at the Mandarin Oriental Hotel on April 13, 2013 in Miami, Florida. (Photo by Vera Anderson/WireImage)
MIAMI, FL - APRIL 11: Dwayne Johnson attends the press conference of the Miami Premiere of 'Pain & Gain' at Mandarin Oriental on April 11, 2013 in Miami, Florida. (Photo by Alexander Tamargo/Getty Images for Paramount)
MIAMI GARDENS, FL - APRIL 1: Dwayne ''The Rock'' Johnson looks on during his match against John Cena during WrestleMania XXVIII at Sun Life Stadium on April 1, 2012 in Miami Gardens, Florida. (Photo by Ron Elkman/Sports Imagery/Getty Images)
Dwayne 'The Rock' Johnson during WrestleMania XXVII at Georgia Dome on April 3, 2011 in Atlanta, Georgia.
Dwayne 'The Rock' Johnson during Wrestle Mania XX at Madison Square Garden in New York City, New York, United States. (Photo by KMazur/WireImage)
403707 06: Professional wrestler Dwayne 'The Rock' Johnson poses at the unveiling of his wax portrait at Madame Tussaud's Wax Museum April 10, 2002 in New York City. The museum creates life-size, three-dimensional wax sculptures of celebrities and historical figures around the world. (Photo by Mario Tama/Getty Images)
SATURDAY NIGHT LIVE -- Episode 17 -- Air Date 04/13/2002 -- Pictured: (l-r) Seth Meyers as Jeremy, Maya Rudolph as The Scorpion Queen and Dwayne Johnson as The Scorpion King during 'The Scorpion Prince' skit on April 13, 2002 (Photo by Norman Ng/NBC/NBCU Photo Bank via Getty Images)
395220 10: Actor Dwayne Johnson, aka 'The Rock', walks onstage to promote a special DVD and home video release of the movie 'The Mummy Returns' October 3, 2001 in Santa Monica, CA. (Photo by Jason Kirk/Getty Images)
OCTOBER 22: Defensive end Dwayne Johnson #94 of the University of Miami Hurricanes walks on the field during the NCAA game against the University of Virginia on October 22, 1994. Dwayne Johnson is also known as 'The Rock' of World Wrestling Federation. (Photo by Jed Jacobsohn/Getty Images)
GOLD COAST, AUSTRALIA - APRIL 14: (EUROPE AND AUSTRALASIA OUT) Dwayne Johnson, aka 'The Rock', is seen after a work-out at World Gym, Ashmore on April 14, 2014 on the Gold Coast, Australia. (Photo by Richard Gosling/Newspix/Getty Images)
LOS ANGELES, CA - JULY 17: Actor Dwayne Johnson speaks onstage during Nickelodeon Kids' Choice Sports Awards 2014 at UCLA's Pauley Pavilion on July 17, 2014 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)
WWE Superstar and actor, Dwayne "The Rock" Johnson speaks to the media before Wrestlemania 28 in Miami, FL.
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