Backstage with Stavros: could Isaac be the new Jamie Cullum?
He's only 15, but Isaac Waddington brought the house down following his emotional performance on Saturday night.
The talented pianist overcame any jitters to give a stellar rendition of Billy Joel's Always A Woman, bagging himself four well-deserved yeses in the process.
Could he be the next Jamie Cullum? Stavros seems to think so. Find out what happened when the two of them caught up behind the scenes.
Watch Isaac melt the Judges' hearts all over again!Stavros gets the goss from golden buzzer act Revelation AvenueWhatever you do, DON'T look into Hypnodog's eyes...Will David be singer-songwriter Paul's newest celebrity fan?