Breaking News: Stephen Baldwin Reveals That Daughter Hailey Bieber’s Baby Jack Blues Is ‘Incredibly Cute’ (Exclusive)…see more

Stephen, 58, has been on grandpa duties lately, telling PEOPLE he’s been “hanging out with my four year old granddaughter Iris. I’m in town to celebrate her fourth birthday and the launch of the podcast and all that,” he explains, referring to his daughter Alaia’s little girl, Iris Elle Aronow.

Stephen also hints that Jack Blues might be making a public appearance in the near future, saying that, “the world will see him soon.”

And of course, here comes Jack Blues Bieber. And yeah, he’s just… I don’t want to say too much. He’s unbelievably cute,” the actor adds of his new grandson.

Speaking exclusively to PEOPLE at the People + Chain 50th anniversary party at The Chain House in Los Angeles on Friday, Sept. 13, the actor and father