▁Radio " ▁in ▁Los ▁Angeles . ▁By ▁the ▁end ▁of ▁the ▁station ' s ▁run , ▁the ▁station ▁had ▁a ▁day part ed ▁format ▁of ▁Top ▁ 4 0 ▁during ▁the ▁day ▁and ▁more ▁heavy ▁metal ▁in ▁the ▁even ings . ▁In ▁addition , ▁the ▁station ▁would ▁drop ▁the ▁" G or illa ▁Radio " ▁portion ▁of ▁the ▁mon iker ▁to ▁just ▁be ▁named ▁" Z 9 5 . 1 ". ▁ ▁F lip ▁to ▁old ies ; ▁second ▁Top ▁ 4 0 ▁era ▁The ▁return ▁to ▁CH R ▁didn ' t ▁last ▁long ; ▁Adams ▁Radio ▁would ▁buy ▁the ▁station ▁back ▁in ▁late ▁ 1 9 9 0 . ▁On ▁December ▁ 2 6 ▁of ▁that ▁year , ▁after ▁playing ▁" Free ▁Bird " ▁by ▁Lyn yr d ▁Sk yn yr d , ▁W Z Z G ▁became ▁W G K L - FM , ▁" K ool ▁ 9 5 . 1 ", ▁an ▁old ies ▁format ▁emphas izing ▁ 5 0 s ▁music ▁more ▁than ▁Magic ▁ 9 6 . 1 , ▁util izing ▁Sat ellite ▁Music ▁Network ' s ▁" P ure ▁Gold " ▁format . ▁The ▁f lip ▁occurred ▁because ▁of ▁a ▁company - wide ▁initi ative ▁where ▁most ▁of ▁Adams ' ▁stations ▁f li pped ▁to ▁the ▁format . ▁This ▁format , ▁however , ▁would ▁last ▁just ▁a ▁short ▁time . ▁After ▁a ▁few ▁months , ▁the ▁station ▁added ▁a ▁local ▁a irst aff , ▁but ▁by ▁the ▁station ' s ▁end , ▁the ▁entire ▁staff ▁was