Season 4

Eight fresh young stars arrive at the music mansion to compete for an amazing prize - the chance to perform at Radio 1's Big Weekend. But they aren't the only new faces arriving in the mansion. On her own personal journey is new presenter Anna Maynard, and working with the singers is a new musical director, Max Cooke. This time the kids face a tricky vlogging challenge with online superstar Sophia Grace, and the mums make a big splash when they go head to head with footballing freestylers F2! But the big question is who will walk away with the win in the very first sing-off.

The eight kids head to London's West End, to sing on the Aladdin stage. Their performance will be judged by Jasmine, played by Jade Ewen, and renowned choreographer Ben Clare. The mums take on an adrenaline-pumping zip-line in their next challenge, Drop the Beat, to try and secure their kid the final place in the sing-off.

Bars and Melody arrive in the music mansion to host an epic rap battle between the singers. Music maestro max is in for a nasty surprise when the group take on his favourite Dua Lipa track. And things get personal in the mum's challenge when they try to make a clay sculpture of their own child's head. Which mum will be artistic enough to win their kid the final Sing-Off spot?

Things get competitive when talented twins Max and Harvey arrive in the music mansion. The singers have to get creative in a music video challenge. The mums try to hold their nerve as they take to the rally track for some high-speed karaoke. And it's the chance for one singer to pull ahead of the pack as we reach the crucial fourth Sing-Off.

The singers have a music master class with song-writer John Newman. Things get emotional in the lesson when the kids take on a powerful Shawn Mendes song. And the mums go head to head with the Hertfordshire Cheetahs, an American football team who definitely don't go easy on them!

The singers get a taste of what it's really like to be famous when they face a tricky interview at Radio 1. Which one of them will dish the dirt when DJ Maya Jama tries to dig a little deeper into their personal lives? Then it all falls to pieces in the music lesson when the singers take on an Ariana Grande track, which proves to be their biggest nightmare. And it's time to find out which of the mums knows their child best when they are entered into in a game show challenge with a very messy forfeit.

Things heat up when the arrival of Olly Murs causes a music mansion meltdown. The singers struggle to sing in Spanish when they take on a Liam Payne track. It all goes downhill for the mums when they are chased by a yeti down the UK's longest toboggan track. And one singer finally pulls ahead of the pack in the all-important seventh Sing-Off.

Things get emotional for one singer when the group take on a Spanish dance challenge. It all gets a bit cringeworthy when the mums take to the stage in a lip-sync battle. And in the final sing-off, one singer walks away with the elusive fast pass into the grand final.

It's the semi-final. The seven remaining singers are put to the test in a make-or-break performance at the world-famous Metropolis recording studio. All seven get to perform one track but only three can make it through to the grand final, and it's all down to the public vote. Who will win over the nation and earn their spot in the final and whose journey in the competition will end?

It's the grand final and four singers take to the stage for a nerve-racking performance in front of a studio audience and a panel of music industry judges. The winner will walk away with a life-changing opportunity - the chance to perform on the main stage at Radio 1's Big Weekend and to record a collaboration with a mystery star. But the finalists aren't the only ones feeling the pressure - after weeks of training for the big day, Anna Maynard will also be stepping up to make her first solo performance.

Winner Lauren collabs with Bars and Melody, before taking the main stage at Radio One's Big Weekend.