Without too much hype, Cham had the comeback of the year in 2012. Starting 2012 off with the appropriately titled “Tun Up”  (and also dropping the equally timely “Wine,” also with guest vocals from his wife, “O,”) the deejay formerly known as Baby Cham later dropped a candidate for tuffest tune of the year, in “Lawless.” To top it all off, he went and murdered JA Productions’ Overtime riddim one more time, too. “Lawless” was the tune that