GAH! John Stamos’ Son Billy Makes His Late Night Debut

John Stamos is a hot dude — we’re just gonna say it. His 7-month-old son, Billy, is definitely going to be a looker, too. 

Billy made his debut on Jimmy Kimmel Live this week, which was a ’70s theme in celebration of Halloween. His wife, Caitlin McHugh, came out holding the baby, who was dressed like Mork from Mork and Mindy. 

And John loves being a dad: “Isn’t he just the most beautiful baby?” he gushed. “I’m so in love.”

We’re dead!