Cuba Gooding Jr. is paying his respects to his father.

The "People v. O.J. Simpson: An American Crime Story" star, whose father, Cuba Gooding Sr., died on Thursday at his Woodland Hills, California, home at age 72, took to Instagram on Friday to give a simple, heartfelt nod to his dad's soul-singer legacy.

WATCH: Cuba Gooding Sr. Dies at 72

"Eternal," Gooding Jr. captioned a pic of the Greatest Hits album cover for legendary Motown group, The Main Ingredient. Gooding Sr. fronted the group, which was most famous for the timeless '70s hits "Everybody Plays the Fool" and "Just Don't Want to Be Lonely."

The investigation into Gooding Sr.'s death is ongoing, and cause of death is still undetermined pending autopsy results, Los Angeles Assistant Chief Coroner Ed Winter told reporters on Thursday, adding, "There was alcohol found in the car...and possible drug paraphernalia."

"We ask that everyone respect our privacy at this time. Thank you," Gooding Sr.'s son, Omar, told ET in a statement.

Meanwhile, Gooding Jr. spoke to ET at the premiere of his 2002 film, "Snow Dogs," about the love and support his parents had given him.

FLASHBACK: Cuba Gooding Sr. Says He's 'Very Proud' of His Famous Sons at 'Snow Dogs' Premiere in 2002

"They're very supportive. Very supportive," Gooding Jr. told ET at the time. "When we had moved away from Hollywood, my mom made the decision to move us back just so that I could pursue an acting career and I owe her everything. I love her for that."