Published Friday, 04 June 2010
Thirteen-year-old Kieran wowed judges and audience alike behind a specially made kit that tipped forward to show off his stick skills. The performance saw him take the popular vote.
But Liam had a nervous wait before Simon Cowell gave the 14-year-old the deciding nod over dance trio A3 for the runner-up spot.
The acts complete the line-up who will now compete in Saturday's final. The overall winner will have the chance to perform at the Royal Variety Performance.
After being told he had topped the public vote, Kieran said: "I feel great, I feel over the moon."
Piers Morgan was the first to give his vote for runner-up.
The former newspaper editor opted for Liam after remarking that A3 were "engaging" but had made mistakes.
Fellow host Amanda Holden differed in her opinion and gave her blessing to the dance act.
Giving the deciding vote, Cowell said both acts had been better in previous performances but opted to give Liam another chance.