Why ▁Can ' t ▁We ▁Be ▁Fri ends ?" ▁s ung ▁by ▁the ▁two ▁final ist ▁groups , ▁The ▁Be el z eb ubs ▁from ▁Tu ft s ▁University ▁near ▁Boston ▁and ▁Not a , ▁from ▁San ▁Juan , ▁Puerto ▁Rico . ▁He ▁again ▁returned ▁for ▁the ▁show ' s ▁second ▁season ▁in ▁December ▁ 2 0 1 0 , ▁the ▁third ▁season ▁in ▁September ▁ 2 0 1 1 ▁alongside ▁Stock man ▁and ▁S ara ▁B are illes ▁and ▁a ▁fourth ▁season ▁with ▁Stock man ▁and ▁Jew el ▁in ▁December ▁ 2 0 1 3 . ▁ ▁F olds ▁has ▁made ▁several ▁appearances , ▁often ▁as ▁a ▁fict ional ized ▁version ▁of ▁himself , ▁in ▁both ▁TV ▁and ▁mov ies . ▁He ▁made ▁a ▁came o ▁appearance ▁in ▁the ▁ 2 0 1 3 ▁film ▁We ' re ▁the ▁Mill ers ▁playing ▁himself ▁as ▁a ▁piano ▁teacher . ▁In ▁January ▁ 2 0 1 4 , ▁F olds ▁had ▁a ▁brief ▁appearance ▁in ▁the ▁TV ▁show ▁Community ▁episode ▁" Basic ▁Inter gl ute al ▁Num ism at ics " ▁( S 5 E 0 3 ) ▁as ▁" Pro f essor ▁B ub l itz ", ▁a ▁bot any ▁teacher ▁who ▁secret ly ▁grows ▁mar iju ana ▁in ▁his ▁office , ▁as ▁well ▁as ▁contrib uting ▁the ▁song ▁that ▁clos es ▁out ▁the ▁episode , ▁" Ass ▁Cra ck ▁Band it ". ▁F olds ▁appeared ▁as ▁himself , ▁al beit ▁an ▁ex agger ated ▁version , ▁in ▁Se asons ▁ 3 ,