In January 1981, Diamond Head successfully opened for April Wine on their UK tour. An ambitious UK tour was planned for the summer by Reg and Linda as a way of being perceived as being more popular than they actually were. An EP called "Diamond Lights" was recorded quickly to help pay towards the expenses. Reg hired a sleeper coach for band and crew, an articulated lorry filled with hired PA and Lights. Reg also hired the Wolverhampton chapter of Hell's Angels to perform security duties on the whole tour. Reg bypassed promoters and booked the venues with a local agent to avoid paying a percentage but with very little promotion for the tour it lost money.