cca ▁Records , ▁master ed ▁by ▁Steve ▁Hoff man ▁and ▁released ▁in ▁ 1 9 8 5 , ▁clock ▁in ▁at ▁ 2 : 1 0 . ▁This ▁is ▁due ▁to ▁the ▁inclusion ▁of ▁a ▁" count - in " ▁by ▁one ▁of ▁the ▁Com ets ▁( say ing , ▁" One ▁... ▁two ") ▁at ▁the ▁very ▁start ▁of ▁the ▁song . ▁This ▁was ▁never ▁included ▁in ▁the ▁original ▁single ▁or ▁album ▁releases ▁of ▁the ▁song . ▁( All ▁of ▁H ale y ' s ▁subsequent ▁studio ▁r ere cord ings ▁of ▁the ▁song ▁run ▁longer ▁than ▁ 2 : 1 0 ▁with ▁the ▁exception ▁of ▁the ▁abbre vi ated ▁version ▁recorded ▁for ▁Happy ▁Days ). ▁There ▁are ▁no ▁other ▁studio ▁recorded ▁version ▁after ▁the ▁ 1 9 5 0 s ▁and ▁Happy ▁Days ▁versions . ▁ ▁T ributes ▁In ▁t ribute ▁to ▁the ▁influence ▁of ▁the ▁song ▁and ▁the ▁movie ▁that ▁launched ▁its ▁popular ity , ▁the ▁March ▁ 2 9 , ▁ 2 0 0 5 ▁ 5 0 th ▁anni versary ▁of ▁the ▁opening ▁of ▁Black board ▁Jung le ▁was ▁marked ▁by ▁several ▁large ▁celebr ations ▁in ▁the ▁United ▁States ▁organized ▁by ▁prom oter ▁Martin ▁Lewis ▁under ▁the ▁blank et ▁title ▁" R ock ▁Is ▁Fif ty ". G und ers en , ▁Ed na ▁( M arch ▁ 1 8 , ▁ 2 0 0 5 ). ▁" R ock ▁' C lock ' ▁strik es ▁ 5 0 ". ▁USA ▁Today , ▁p . ▁E 1 .