'You might know this song,' the big lad said. 'The original's by One Direction. It's called "What Makes You Beautiful".'

The four members of Brontobyte all looked at each other and groaned. Alfie summed up the mood.

'Frankly, I'd rather be kicked in the b.a.l.l.s.'

As the backing track kicked in, Womb 101 sprang into an athletic dance routine, with four members moving back, and the big guy in the middle stepping up to a microphone. The dancing looked sharp, but everyone in the room really snapped to attention when a powerful lead vocal started.

The voice was higher than you'd expect from a big black guy, but he really nailed the sense of longing for the girl he was singing about. When the rest of Womb 101 joined in for the chorus the sound swamped the backing track, but they were all decent singers and their routine was tight.

As Womb 101 hit their stride, Jay's music teacher Mr Currie approached Brontobyte from behind. He'd only been teaching for a couple of years. Half the girls at Carleton Road School had a thing for his square jaw and gym-pumped bod.

He tapped in time as the singing and finger clicking continued. 'They're really uplifting, aren't they?'

The four boys looked back at their teacher with distaste.

'Boy bands should be machine-gunned,' Alfie said. 'They're singing to a backing track. How's that even music?'

'I bet they win as well,' Tristan said contemptuously. 'I saw their teacher nattering to the judges all through lunch.'

Mr Currie spoke firmly. 'Tristan, if Womb 101 win it will be because they're really talented. Have you any idea how much practice it takes to sing and dance like that?'

Up on stage, Womb 101 were doing the nana-nana chorus at the end of 'What Makes You Beautiful'. As the song closed, the lead singer moved to the back of the stage and did a full somersault, climaxing with his arms spread wide and two band mates kneeling on either side.

'Thank you,' the big guy shouted, as the stage lights caught beads of sweat trickling down his forehead.

There weren't enough people in the hall to call it an eruption, but there was loads of clapping and a bunch of parents stood up and cheered.

'Nice footwork, Andre!' a woman shouted.

Alfie and Tristan made retching sounds as Mr Currie walked off.

'Currie's got a point though,' Jay said. 'Boy bands are dreck, but they've all got good voices and they must have rehea.r.s.ed that dance routine for weeks.'

Tristan shook his head and tutted. 'Jay, you always agree with what Mr Currie says. I know half the girls in our cla.s.s fancy him, but I'm starting to think you do as well.'

Alfie stood up and shouted as Womb 101 jumped off the stage and began walking towards the back of the room to grab drinks. 'You suck!'

Jay backed up as two of Womb 101's backing singers steamed over, knocking empty plastic chairs out of the way. They didn't look hard on stage, prancing around singing about how great some girl's hair was, but the physical reality was two burly sixteen-year-olds from one of London's toughest schools.

The one who stared down Alfie was the Asian guy with a tear-you-in-half torso.

'What you say?' he demanded, as his chest muscles swelled. 'If I see any of you boys on my manor, you'd better run!'

The boy slammed his fist into his palm as the other one pointed at Alfie before drawing the finger across his throat and stepping backwards. Alfie looked like he'd filled his BHS briefs and didn't breathe until the big dudes were well clear.

'Are you mental?' Tristan hissed, as he gave Alfie a hard shoulder punch. 'Those guys are from Melon Lane estate. Everyone's psycho up there.'

Mr Currie had missed Alfie shouting You suck, but did see Tristan hitting his brother as he got back holding a polystyrene coffee cup.

'Hitting is not cool,' Mr Currie said. 'And I'm tired of the negativity from you guys. You're playing after this next lot, so you'd better go backstage and get your gear ready.'

The next group was an all-girl trio. They dressed punk, but managed to murder a Paramore track by making it sound like bad Madonna. Setting up Tristan's drum kit on stage took ages and the woman judge made Jay even more nervous when she looked at her watch and shook her elaborately hatted head.

After wasting another minute faffing around with a broken strap on Alfie's ba.s.s guitar the four members of Brontobyte nodded to each other, ready to play. When the boys rehea.r.s.ed, Salman usually sang and played, but Alfie was a better musician, so for the compet.i.tion he was on ba.s.s and Salman would just do vocals.

'Hi, everyone,' Salman said. 'We're contestant nine, from Carleton Road School. Our group is called Brontobyte and this is a song we wrote ourselves. It's called "Christine".'

A song I wrote, Jay thought, as he took a deep breath and positioned his fingers on the guitar.

They'd been in the school hall since ten that morning. Now it all came down to the next three minutes.

HODDER CHILDREN'S BOOKS.

BY ROBERT MUCHAMORE.

The CHERUB series:.

1. The Recruit.

2. Cla.s.s A.

3. Maximum Security 4. The Killing 5. Divine Madness.

6. Man vs Beast 7. The Fall 8. Mad Dogs.

9. The Sleepwalker 10. The General 11. Brigands M.C.

12. Shadow Wave.

13. People's Republic 14. Guardian Angel 15. Black Friday 16. Lone Wolf 17. New Guard.

The Rock War series:.

Rock War.

Boot Camp and coming soon.

Battle Zone.

The Henderson's Boys series:.

Start reading with The Escape.