Thanks to I♥ND from the official ND forum for the info,according to a Tweet of country artist Colt Ford,Adrian is drumming on the upcoming album of singer Lindsey Hager:
@coltford: Was in Studio yesterday with Lindsey working on Her Record I had Adrian Young the Drummer for No Doubt to come play on Her stuff It is Great
Adrian had previously drummed on Colt Ford’s 2008 album “Ride Through The Country”.