In 2004, Morgan was granted early leave of a Streets European tour to play with Muse. Chris Wolstenholme, the bands bass player had broken his wrist a week before their headline slot at the Uk's V festival.

After a quick flight home and three rehearsals Morgan then went on to play the show before joining them around Europe Australia and the US.

Throughout 2005 he played with The Streets and Gorilaz before joining Muse on keys/synths/percussion etc for their 'Black Holes & Revelations 'World tour, and then again in 2009 for the 'Resistance' campaign.

He is currently working on pre- production for the bands forthcoming shows to promote 'The 2nd Law' album.