Ahead of Blur's appearance at the BRITS, Damon and Graham will be onstage together for an acoustic set at Warchild's BRIT Awards party at the O2 Shepherd's Bush Empire on Sunday 19 February.
Other performers include Ed Sheeran and Dry the River, with more acts to be announced.
War Child - War Child is an international charity, founded in 1993 in response to the conflict in the former Yugoslavia.
War Child works in the world's most dangerous war zones including Iraq, Afghanistan, Uganda and the Democratic Republic of Congo and aims to protect children who are hit hardest by war and its consequences including street children, child soldiers and children in prison.
Blur have a long-standing relationship with Warchild, contributing the track Eine Kleine Lift Musik to the charity's legendary 1993 album Help.
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