Their guitars are as tall as they are but these primary school rockers are already a class act.
Meet brothers William and George Halliday and pal Jake Oates - also known as The Fluffy Gremlins.
The lads are preparing to ditch their school uniforms and play in front of hundreds tonight at Barnsley Trades Club.
George, nine, of St Andrew's Drive, Darton, said: "We've been playing together since last August. This will be our fourth concert."We are nervous that we're going to get stuff wrong."
The boys, who attend Wellgate Primary, Mapplewell, practise together once a week but play most days on their own.
Jake, nine, of Moorland Crescent, Staincross, said: "We get together after school on Mondays for about two hours."
William, eight, said: "When we have done a concert it feels really good."
Proud mums Victoria Halliday and Shelly Oates said tonight's concert - the Munk Memorial gig also featuring the X-Rippers and The Vibrators - would probably be their biggest. Victoria said the lads had attended a rock school in the summer and had not looked back.
"If they're this young and are not fazed by it - then go for it," she said.
Shelly added: "As long as they enjoy it, that's the main thing."
The Fluffy Gremlins will be on stage at about 8pm playing Teenage Kicks by the Undertones, Use Somebody by Kings of Leon and Highway to Hell by AC-DC.