Yeah great gig. AC/DC were a real force then, and Def Leppard were raw before they became very Americanised.
Rush have always been my go to band and seen them loads, but for sheer quality probably Priest supported by a young Iron Maiden with Paul Dianno stands out for. me.
Never seen...
Was that the Highway to Hell tour. Last one for Bon Scott sadly. If it was i saw that gig. Can't remember who was the support. For some reason I want to say a very young Def Leppard.
First gig was Manfred Manns Earth Band at the Rainbow (sadly no longer standing) . First Hammersmith gig was Rush in 1979 supported by Max Webster. Saw Priest supported by a young Iron Maiden in about 79/80 also. Loads others including Ozzie, UFO, Sammy Hagar, Thin Lizzy, Whitesnake, Scorpions...