The Big Chill's summer festival is called Enchanted Garden. How lovely is that? Green fields, a warm breeze, gentle blips and bleeps floating out from the stage as the sun sets. Hackney in December can hardly compete.

But once the crowd at this all-nighter had stopped worrying about the cost of their cabs home, things got a little more festive. Fred Deakin of Lemon Jelly laid down an office-Christmas-party vibe in the bar with some old favourites. Dub versions of disco classics were followed by Boston's stadium saga More Than a Feeling and a kind of Little Drummer Boy remix of Here Comes the Sun. Heads were bobbed.

Royksopp, the only live act of the night, were having none of this. They played a storming set that banished any thought of chilling. The Norwegian duo are known for throwing everything into the mix. In this hour-long show we had slices of hip-hop, chunks of funk and long evocative swooshes, like moments from a John Williams soundtrack. It all works, thanks to the pair's impeccable timing and contagious energy. It's hard not to warm to a man who plays the drum pads with his head.

What really worked though - especially given Deakin's warm-up act - was the nostalgia. You could take your pick: there were 1991 rave beats, mid-1980s drum loops and basslines from anytime. The single most popular moment of the night was when Torbjorn Brundtland hit the button for that "machine-gun synth" sound, beloved by all thanks to Trans-X's 1985 hit Living on Video, and always accompanied by a strobe light.

Unfortunately, a tedious and self-indulgent DJ set from the Future Sound of London's Gary Cobain followed, driving nearly everyone back to the bar for some more of the tunes that put a smile on your face.

· Royksopp support Basement Jaxx at the Great Hall, Cardiff (0292 087 4832) tonight, then tour.