▁Boys ▁( B ing ▁C ros by , ▁Al ▁R ink er ▁and ▁Harry ▁Bar ris ), ▁as ▁well ▁as ▁off - camera ▁solo ▁vocals ▁by ▁C ros by ▁during ▁the ▁opening ▁cred its ▁and , ▁very ▁briefly , ▁during ▁a ▁cart oon ▁sequence . ▁King ▁of ▁Jazz ▁still ▁surv ives ▁in ▁a ▁near - complete ▁color ▁print ▁and ▁is ▁not ▁a ▁lost ▁film , ▁unlike ▁many ▁contemporary ▁musical s ▁that ▁now ▁exist ▁only ▁either ▁in ▁incomplete ▁form ▁or ▁as ▁black - and - white ▁reduction ▁copies . ▁ ▁In ▁ 2 0 1 3 , ▁the ▁film ▁was ▁selected ▁for ▁pres ervation ▁in ▁the ▁United ▁States ▁National ▁Film ▁Reg istry ▁by ▁the ▁Library ▁of ▁Congress ▁as ▁being ▁" c ultur ally , ▁histor ically , ▁or ▁a est het ically ▁significant ". ▁ ▁Plot ▁King ▁of ▁Jazz ▁is ▁a ▁rev ue . ▁There ▁is ▁zero ▁story , ▁only ▁a ▁series ▁of ▁musical ▁numbers ▁altern ating ▁with ▁" black outs " ▁( very ▁brief ▁comedy ▁sketch es ▁with ▁ab rupt ▁p unch ▁line ▁end ings ) ▁and ▁other ▁short ▁intro duct ory ▁or ▁linking ▁segments . ▁ ▁The ▁musical ▁numbers ▁are ▁diverse ▁in ▁character , ▁taking ▁a ▁" something ▁for ▁everyone " ▁approach ▁to ▁appeal ▁to ▁family ▁aud ien ces ▁by ▁c ater ing ▁to ▁the ▁young , ▁the ▁old ▁and ▁the ▁middle - aged ▁in ▁turn . ▁The ▁slow ▁Br idal ▁Ve il ▁number , ▁featuring ▁( acc ording ▁to ▁Universal ) ▁the ▁largest ▁ve il ▁ever ▁made , ▁exhib its ▁Victor