Holly Slingsby is among the artists performing in the Black Maria Showcase, an evening of of seven different performances ranging from video art, performing and music, urban and folk musicians, from 9.00 - 11.30pm on Wednesday 6 March 2013 at Black Maria in the The Crossing, 1 Granary Square, King's Cross, London N1C 4AA. Black Maria is a major new commission by Richard Wentworth and the architectural practice GRUPPE. See www.kingscrossevents.co.uk.