WATCH: John Travolta and Kelly Preston's 4-Year-Old Son Benjamin Makes His TV Debut (Sort Of)

Getty Images

Maybe Benjamin Travolta won't be following in his parents' acting footsteps after all.

After telling a cute anecdote about his four-year-old son on last night's episode of 'Late Show with David Letterman,' John Travolta asked for Benjamin to make his TV debut onstage — but the little one was not having it.

Kelly and Ben backstage at the 'Late Show' on April 20, 2015. (Photo Credit: R/R)

"Tonight, later, maybe, he could come on and say 'Hi' to you if it's okay... If you allow him to," the 'Grease' star, 61, asked host David Letterman, to which he responded "Bring him out now! Where's the kid? Bring the kid out!"

Related: John Travolta Credits Scientology for Helping Him Cope With the Death of His Son Jett

The cameras then panned to John's wife, Kelly Preston, 52, holding Ben as they walked through the show's backstage area. But as soon as the actress appeared on set, her son ran offstage!

Kelly with Ben onstage. (Photo Credit: R/R)

"We tried," John — who is also dad to daughter Ella, 15, with Kelly — told the audience. "Sorry, Ben."

Watch the cute clip in the video below!