We caught up with all of the judges, plus Ant and Dec, as they arrived to begin their talent-search. The girls both recognised our reporter!
Morgan Westcott, a member of Only Boys Aloud, has spoken to ITV Wales about his experiences of cyber-bullying.
The teenage male voice choir sang the Welsh hymn Calon Lân, while fellow Welsh act Nu Sxool also won praise for their performance.
Singing brothers Richard and Adam Johnson from Holywell are one of two Welsh acts through to tonight's Britain's Got Talent final.
They spoke to ITV's Divya Kohli about their journey so far, their hopes for the future, and their number one fan - their nan!
Two brothers from Flintshire are preparing to go up against a group of super - young, super - energetic dancers from Port Talbot plus a few other acts in the finals of Britains Got Talent.
The singing double-act Richard and Adam and the twinkle toed tiny tots Pre-Skool will be flying the Welsh flag for us.
Rob Shelley reports.
Port Talbot dance troupe, Pre Skool are the second Welsh act to make it through to this year's Britain's Got Talent finals. The youngsters won the judges' vote to join Richard and Adam Johnson in next week's finale.
Singer Robbie Kennedy, from Cwmbran, also performed on Thursday's live semi-finals but failed to make it through.
Two welsh singers from Holywell said they are "absolutely made up" to be through to the finals of Britain's Got Talent.
Richard and Adam Johnson won the public vote in the live semi-final last night.
Speaking to Daybreak this morning, the brothers said : "We never in a million years thought we'd be able to get to where we are."
Richard and Adam Johnson from Holywell are through to the Britain's Got Talent finals. The brothers won the public vote on Monday night's first live semi-final for their rendition of 'Somewhere' from musical West Side Story.
Speaking to hosts Ant and Dec, the brothers said making the final meant "so much" to them after working hard over the last couple of years.
Port Talbot dance troupe Pre-Skool impressed the judges on last night's Britain's Got Talent.
The youngsters were inspired to enter the competion by siblings who got through to last year's final with Nu Sxool.
The 13-strong group - made up of children aged five to eight - was choreographed by Terry Michael, who was also behind Nu Sxool's successful audition. Pre-Skool are through to the next round after each of the four judges said 'yes.'
Judge David Walliams told them: "I thought, I really hope their dancing lives up to how cute they are, and it did. It was fantastic."
An artist from Ebbw Vale who wowed the judges on Britain's Got Talent by creating portraits out of marmite has now paid a cheeky tribute to another ITV talent show star - Rylan Clark.
Nathan Wyburn, who first showed off his skills at portraying celebrities with unusual materials on ITV Cymru Wales, used a tube of fake tan to paint Essex lad Rylan, who finished fifth in last year's X Factor.
"It was inspired by Rylan's obsession with fake tan, I thought it would make a very fitting portrait", Nathan said. "When I presented it to him he claimed it was the most unique gift he'd ever been given, and that it meant more than any cars or clothes he'd received."
Nathan, who is 22 and a fine arts graduate, has used Marmite to paint portraits of the Queen David Beckham, Michael Jackson, Kate Middleton, and our very own Andrea.
Sometimes when we interview some big stars, we ask them to record some 'teases' for the top of our programme. Here's how Ant and Dec, and Simon Cowell, got on.
ITV show Britain's Got Talent is back and Wales is the first stop on its audition tour. So, will it be dancing dogs, an orchestral delight, or hair-raising stunts? Rob Osborne is outside the Wales Millennium Centre in Cardiff with many people waiting for the judges - and Ant and Dec - to arrive.