AceShowbiz - Stephen Baldwin is beaming with pride as a new grandfather! Speaking exclusively to PEOPLE Magazine, the actor shared his experiences as a grandpa and the arrival of his latest grandchild, Jack Blues Bieber, born to Hailey Baldwin and Justin Bieber in August.

At 58, Baldwin has been relishing his time with his grandchildren, including his 4-year-old granddaughter, Iris, from his daughter Alaia. However, Jack Blues Bieber has captured his heart with his "unbelievably cute" appearance.

"He's just… I don't want to say too much. He's unbelievably cute," Baldwin says of his grandson. He hints that Jack Blues might make a public appearance soon, saying that "the world will see him soon."

Justin Bieber first announced the birth of his son on Instagram on August 23, with a photo of Jack Blues' foot and the caption "WELCOME HOME JACK BLUES BIEBER." Baldwin expressed his joy by resharing the post and writing "#Congratulations Mr&Mrs Bieber #Grandson #blessed."

According to sources close to the couple, the pregnancy was "something that they very much wished and prayed for." Justin Bieber was "over the moon with excitement" upon learning the news, and the arrival of their son has brought immense joy to both parents.

"The baby is such a miracle. He's adorable and doing well. Hailey's doing well too," an insider shared.

Hailey Bieber recently flaunted her new "MOM" ring while Justin posted a "Papa Bear" mug on social media, showcasing their transition into their new family roles.

Fans and followers have expressed their well wishes and excitement for the Baldwin family. One commenter said, "Proud Grandpa." Another added, "What a lucky grandpa."

Stephen Baldwin's love and admiration for his family members is evident in his words and actions. The arrival of Jack Blues Bieber has brought a fresh wave of joy and happiness to the extended Baldwin-Bieber clan.