Tilly & The Wall are no ordinary band. The indie-popsters have swapped the traditional drum kit for an amplified platform, smack-bang at the front of the stage. And from there, her flat throne, beat-layer Jamie Pressnall danced her heart out last night, beaming wildly, stealing every watt of the limelight.

Of course, without adequate musical support Jamie's clattering feet would be irritatingly gimmicky. Luckily, four bandmates complement her phenomenal energy and the Nebraska-based five play democratically lined up at the stage edge so each member's assets can shine. Like California's rising stars The Little Ones, who provided smile-aminute support, Tilly's is a deliciously melodic strain of indie- pop. Theirs are unashamedly optimistic, happy-clappy tunes you can imagine on the soundtrack to The OC, playing during a scene where all the kids are blissfully skipping along the beach hand in hand.

Dubstep jungle beats and electronic classical piano provided by Nick White on keyboards added extra oomph, but the real oomph comes from the smiling, arm-flailing charisma of all five. And it helps that they all dress like bohemian gipsies, and that the tattoo-speckled girls (completed by singer Neely Jenkins and bass-playing vocalist Kianna Alarid), are all dazzlingly beautiful. The entire spectacle is a delight.

When dreamy solo songs and duets were proffered - namely Lost Girls and Love Song - that didn't initially call for Jamie's feet, the magic was muted slightly, glittering back when we saw our grinning "drummer" tip-toeing quietly back to her patch for an upcoming cue. Her frantic clickety-clack-clack beats made a change from the average thump of a drum kit and served to complement the delicate charm of angelic songs such as Sing Songs Along and Black And Blue.

A "what do you guys want?" encore had the audience of Tilly-kids (the healthiest, happiest looking bunch of indiekids) squealing for cult favourite Pictures Of Houses as The Little Ones and norf-London neo-folkster support act Kate Nash joined the main act on stage. Suddenly whistles, maracas and tambourines saw Scala melt into a summer carnival, while all eyes were still on ever-dancing Jamie, revelling in the fiesta.

All the girls wanted to be her and all the boys wanted to be with her. Heck, she was Jamie Williams before she cast her spell on guitar-strumming bandmate Derek Pressnall, who snapped her up in marriage. But enough gushing. The Tillys are yummy, but I've got to get to the tap-dancing shoe shop.