This large space is left deliberately in case anyone spots the presence of the quiz from this post & wishes to try it before seeing all the answers.
1 Right said Fred 2 Housemartins 3 Shadows 4 Jethro Tull 5 UB40 6 Beetles (Beatles) 7 10cc (whose name derivation is very similar to that of Loving Spoonful) 8 Rolling Stones 9 Queen 10 E.L.O. 11 Crystal Palace (the Crystals – da do ron ron). Also one of their nicknames is The Eagles 12 (Marty) McFly 13 Deep Purple 14 Cricket's 15 ABBA 16 Band Aid 17 Steps (from the John Buchan book title) 18 Hearsay 19 Busted (flush) 20 Who