British rockers Damon Albarn and Graham Coxon showcased a new Blur track during a short show in London on Sunday night (19Feb12).
The Parklife stars are set to be honoured with the Outstanding Contribution To Music prize at Tuesday's (21Feb12) Brit Awards in London, where they will also perform.
Albarn and Coxon teamed up to close the War Child charity's pre-Brit Awards fundraiser at the O2 Shepherd's Bush Empire, and they thrilled fans with new song Under The Westway - the band's first new material since 2010.
The pair went on to play He Thought Of Cars, from Blur's 1995 album The Great Escape, and Strange News From Another Star from their eponymous 1997 disc.
The group last performed as a foursome in 2009, when they reunited for a number of festival headlining slots.