Last Friday (Mar. 4) marked the 22nd birthday of AJ Tracey, the west London emcee who we believe is destined for a big 2016. Well, we say "destined", but it's already coming to pass: AJ's on almost every festival line-up this summer and his 2015 hit, "Naila", is still clocking up views. A celebratory birthday set was held in AJ Tracey's honour at Radar Radio, London's leading underground music station, and was lyrically lifted by the likes of Big Zuu, Jon E Clayface, Blessed, Jay Amo, Merky Ace, Mic Ty, YGG, Drifter, a surprise shelling from Firmer Dee (bka Funky Dee), and a whole lot more. New styles. New flows. New gen. New powers. Listen back to the session below, and peep the gallery on the flip.