IRISH duo Jack and Cormac are still in the running for a wildcard place in this weekend's Britain's Got Talent final after finishing third in last night's semi final.
Last night's semi-final was dominated by children after Strictly Come Dancing host Sir Bruce Forsyth, reportedly criticised the show for featuring minors.
Aspiring comedian Jack Carroll went straight through to the final after a set of self-penned jokes - including topics such as his cerebral palsy condition and North Korea - won him the public vote.
And Glaswegian comedian Frankie Boyle tweeted "the comedian kid is better than loads of pros" in appreciation.
Meanwhile, 14-year-old Gabrielle "Gabz" Gardiner, from Stevenage, Hertfordshire, took the judges' vote after being pitted against Irish duo Jack Duff, 13, and Cormac Connell, 14.
Gabz impressed with one of 30 songs she wrote in her bedroom which sees her sing, rap and play piano, while Jack and Cormac looked at each other in disbelief as they made it into the semi-final's last three with their version of Taylor Swift's I Knew You Were Trouble.
Holden told her: "You are like a little star in the making and listening to your voice and listening to the lyrics, it was like when Lily Allen first broke, it is the same kind of feeling that I had."
And Simon Cowell took advantage of her assured performance to send a message to Sir Bruce, saying: "The kids have taken over this show, they are doing better than the adults."
However the Irish singers could still make the final - the judges will select one of the third placed acts to join the other performers in the grand finale.
Meanwhile, Alice Frendenham, from Harpenden, in Hertfordshire, cried after making a mistake as she offered a sultry rendition of Ella Fitzgerald classic Cry Me A River decked out in a red dress with lipstick to match.
The 28-year-old, who had previously been rejected by judges on the BBC's The Voice talent show, had already enjoyed high praise from Cowell during auditions.
Cowell said: "When I said your voice was liquid gold - I'm going to change that, it's liquid platinum. You are old school, authentic and beautiful."
Walliams had his usual laugh at the expense of Cowell after 1980s tribute act Meat Diva, featuring heavyset couple Matt and Jody, from Woking in Surrey, got the crowd giggling.
"You know what, if there's one thing this show is about and that's fun. It was brilliant fun, brilliant entertainment, we are all smiling, all clapping, even Simon was smiling - the botox moved a tiny bit," the Little Britain actor quipped.
Meanwhile judge Amanda Holden has revealed a deep admiration for one of Jennifer Lopez's many talents - her rear.
The show's live semi-finals reached fever pitch when the 43-year-old American superstar performed her new tune Live It Up decked out in a revealing black body suit with high boots and furs to match.
Asked if there had been any surprises on the night, 42-year-old Holden said: "Well, J-Lo's arse - I just wanted to bite it."