Dwayne Johnson sings to daughter Jasmine on her first birthday: Watch!

Dwayne "The Rock" Johnson is one proud papa!

The Moana star took to Instagram on Friday to wish his daughter, Jasmine, a happy first birthday, adorably gushing over his baby girl's surprise reaction to his singing in a too-cute-for-words video.

WATCH: Dwayne Johnson Talks Sweaty Pikachu Halloween Costume and Showing Off His Singing Voice in 'Moana'

Jasmine, who was dressed in a bright pink top, started clapping as soon as her dad began belting out "Happy Birthday" to her.

"Teaching 'em young to start applauding the moment daddy starts singing. Smart girl," the 44-year-old actor captioned it. "Answering my egotistical questions is clearly a work in progress ;). Happy 1st Birthday baby girl. Got you for life. #Aiga #PuaMana🌺"

It doesn't get much cuter than that!

WATCH: Dwayne Johnson Has 'Good Talk' With Baby Daughter During 'Drum Time on Daddy's Big Head'

Jasmine is Johnson's first child with girlfriend Lauren Hashian, the daughter of Sib Hashian, former drummer for the rock band Boston. Johnson also shares 15-year-old daughter Simone with his ex-wife, Dany Garcia.

Back in October, little Jasmine was preciously hypnotized by her daddy's Halloween costume. The Rock dressed up as her "FAVORITE character," Pikachu.

WATCH: The Rock Dresses Up as Pikachu and Adorably Dances for His Daughter on Halloween

"So, for Halloween me and @laurenhashianofficial decided the real life Pikachu was gonna come to the house for a visit," he captioned a video on Instagram. "What Pikachu didn't know was that Jazzy would start crying when he stopped dancing and demanded he continue to shake his tail with a loud 'EH!' So, Pikachu danced over.. and over.. and over.. and over... and over.. again. By the time I dropped my 197th JuJu, the heat of this costume was kickin' my a**.😂 But, hey.. that's what daddy's do."