New Blur Song? Under the Westway

Is this a new Blur song?? Who knows but the audience at the War Child's benefit concert was treated to Damon Albarn and Graham Coxon gracing them with this song entitled Under the Westway. With it's piano down beats and bittersweet melody it feels like a glam ballad and brings bands like Procol Harum (Whiter Shade of Pale), King Crimson (Starless) and a hint of Bowie to mind.