▁producer , ▁executive ▁producer ▁ ▁David ▁Mal let ▁– ▁video ▁director ▁ ▁Andrew ▁Mc Ph erson ▁– ▁phot ography ▁ ▁Dave ▁Mey ers ▁– ▁video ▁director ▁ ▁Kar en ▁Mitchell ▁– ▁make - up ▁assistant ▁ ▁James ▁C . ▁Moore ▁– ▁producer ▁ ▁Ad rian ▁Morgan ▁– ▁producer ▁ ▁El sa ▁Nil sson ▁– ▁viol in ▁ ▁Julia ▁Pers itz ▁– ▁viol in ▁ ▁Alice ▁Pre ves ▁– ▁vi ola ▁ ▁Q - T ip ▁– ▁rap ▁ ▁Jason ▁Rank ins ▁– ▁assistant ▁engineer ▁ ▁Alexander ▁Rich bourg ▁– ▁drum ▁programming , ▁M ID I ▁programming , ▁Pro - Tools ▁ ▁David ▁R ide au ▁– ▁engineer , ▁mixing ▁ ▁Rock w ilder ▁– ▁producer , ▁drum ▁programming , ▁M ID I ▁programming ▁ ▁Matthew ▁Rol ston ▁– ▁video ▁director ▁ ▁Mike ▁Scott ▁– ▁guitar ▁ ▁Domin ic ▁S ena ▁– ▁video ▁director ▁ ▁Chris ▁Se ul ▁– ▁engineer ▁ ▁Laura ▁S ew ell ▁– ▁c ello ▁ ▁D ex ter ▁Sim m ons ▁– ▁mixing ▁ ▁Car ly ▁Simon ▁– ▁perform er ▁ ▁D ary l ▁Sk ob ba ▁– ▁c ello ▁ ▁X avier ▁Smith ▁– ▁drum ▁programming , ▁assistant ▁engineer , ▁mixing , ▁M ID I ▁programming ▁ ▁Sm og ▁– ▁design ▁ ▁Mich al ▁Sob ies ki ▁– ▁viol in ▁ ▁Tam as ▁Str asser ▁– ▁vi ola ▁ ▁Tom ▁S ween ey ▁– ▁assistant ▁engineer , ▁mixing ▁ ▁James ▁" Big ▁Jim " ▁Wright ▁– ▁key boards ▁ ▁Brad ley ▁Y ost ▁– ▁assistant ▁engineer , ▁mixing ▁