Britain's Got Talent contestants Tim and Jack Goodacre have revealed their semi-final plans.
The auditions this year saw 12-year-old Jack take part in Britain's Got Talent with 43-year-old Dad, Tim.
In their audition, the father and son sang an original song ‘The Lucky One’s together, which got Simon Cowell hitting the gold buzzer for them.
The music mogul commented: "You are special. That was fantastic. I love that song, it reminded me of me and my boy. Just magic." Alesha claimed they're "by far the coolest father and son act we've ever had".
Now in the live shows, the duo have teased their plans for tonight's live show.
Tim and Jack told Stephen Mulhern on Britain's Got More Talent they'd be singing a new original song called Big Wide World.
Jack said it had been written 'half and half' by him and his dad especially for the live semi-final.
Previously appearing at the audition stages, Tim said: "I've always wanted to be a dad from an early age... I've always sang, my dad was a singer, Jack's always been around it."
Jack said: "I've performed on stage before, it was an awesome experience. I've always wanted to do something with my dad like this. We thought Britain's Got Talent would be the thing."
"I'm a little bit scared of Simon Cowell, but at least he has children now so he might feel a bit of sympathy for me."
Meanwhile, discussing their audition on ITV's This Morning recently, Tim said: "It's too much. You can't put it into words. It eclipses everything - singing with my son. The support from the public has just been phenomenal. We can't walk six steps outside without people stopping us. It's been unreal."
And reacting to getting the golden buzzer from Simon Cowell, Jack said: "It was just incredible.
"As soon as he pressed it, it was all a blur. I can't remember anything he [Simon] said."
Britain's Got Talent 2018 auditions continue Saturday nights on ITV.