A boys' choir and a dance group from south Wales will be two of 11 acts fighting it out in the final of Britain's Got Talent.
Viewers of the ITV1 show voted for the 140-strong Only Boys Aloud choir and dancers Nu Sxool, from Port Talbot, to go through to the final.
Both Welsh finalists will be hoping to emulate opera singer Paul Potts from Port Talbot, who won the first series.
Only Men Aloud won the BBC talent show Last Choir Standing in 2008.
Among the other finalists are Ashleigh and her dancing dog Pudsey, the teenage ballroom dancers Kai and Natalia, Loveable Rogues, Molly Rainford, dubbed the "little Mariah Carey" and Aquabatique, four synchronised swimmers whose choreographed routine is set to a medley of James Bond theme tunes.
Only Boys Aloud director Tim Rhys Evans said: "I'm so proud of them and so delighted that the lads are getting this amazing opportunity."
He added that the final was a chance to "show the rest of the UK and indeed the world what is special about our tradition".
Fans in Cardiff will be able to watch the show at a special screening at the Wales Millennium Centre.
Bet Davies, spokeswoman for the centre, said: "We never anticipated that we'd sell 1,300 tickets in 12 minutes flat."