Dwayne Johnson and Danny DeVito are currently promoting 'Jumanji: The Next Level.' They decided to do something a bit left of field while on the promo trail.

The actors are currently in Mexico and "spontaneously" decided to crash a wedding reception in Cabo San Lucas.

Johnson shared a video of the whole thing on Instagram. He captioned it: “I’ve never crashed a wedding, but with Devito this was truly UNFORGETTABLE.”

The pair serenaded the bride with a duet of Nat King Cole’s “Unforgettable.” The bride, groom and guests all seemed delighted to have the superstars there.

Johnson described the thought process behind their appearance in the Instagram post. “We were sippin’ on a lil’ Teremana tequila enjoyin’ the quiet sunset together in Mexico after a long week of Jumanji work when this idea hit. Crash the wedding. Grab a mic. Sing a special song. Say adios.

“It was actually quite beautiful and the love and mana in that room surrounding the wedding couple was so strong. Congratulations to the lovey bride, Kristine and handsome groom, Will. And their four children, Ryan, Mason, Edie & Max. Beautiful family.”

'Jumanji: The Next Level' is the sequel to 2017's 'Welcome to the Jungle'. Kevin Hart, Karen Gillan, and Jack Black are reuniting for the flick with DeVito and Danny Glover joining them.

It hits Irish cinemas December 13th.