Had one last night...
I was at this random indoor festival/charity fundraiser type thing, with all these radio DJs walking around. A big crowd had gathered around a stage as Chris Evans introduced a 'new band, not very well-known but they're gonna be huge' with a sly grin on his face... Basically, Muse walk on, but under the guise of this random unknown band (I forget their name but it was quite odd). Matt took up the drums and the clarinet, Dom on the guitar and Chris on bass, and bagn to play 'Walking in the air' from The Snowman. At first the crowd were like 'wtf?' but eventually they got everyone involved and the whole crowd was singing along and swaying and it was pretty cool! They only played the one song and then left, but it completely made my dream-day and my trip to this random indoor festival worthwhile!