ary ", ▁except ▁in ▁the ▁first ▁season ▁where ▁the ▁label ▁" ly rical " ▁was ▁used ▁for ▁the ▁same ▁purpose . ▁Bal let ▁rout ines ▁occur ▁much ▁more ▁rarely , ▁at ▁a ▁rate ▁of ▁one ▁or ▁two ▁per ▁season ▁since ▁their ▁introduction ▁in ▁the ▁fourth ▁season . ▁ ▁Street ▁and ▁club ▁styles ▁H ip - h op ▁rout ines ▁are ▁also ▁present ▁in ▁every ▁performance ▁episode . ▁ ▁While ▁these ▁rout ines ▁frequently ▁feature ▁elements ▁from ▁many ▁different ▁sub gen res ▁of ▁hip - h op ▁( lock ing ▁and ▁po pping , ▁for ▁example ) ▁and ▁various ▁" street " ▁styles ▁( such ▁as ▁breaking ), ▁they ▁are ▁typically ▁all ▁label led ▁under ▁the ▁um bre lla ▁term ▁of ▁hip - h op . ▁ ▁An ▁exception ▁is ▁the ▁now ▁frequently ▁featured ▁lyr ical ▁hip - h op , ▁which ▁is ▁unique ▁amongst ▁all ▁the ▁styles ▁on ▁SY TY CD ▁in ▁that ▁it ▁is ▁the ▁only ▁one ▁that ▁is ▁held ▁to ▁have ▁become ▁a ▁known ▁distinct ▁style ▁at ▁least ▁in - part ▁as ▁a ▁result ▁of ▁the ▁show ; ▁the ▁style ▁is ▁widely ▁attributed ▁to ▁regular ▁show ▁ch ore ograph ers ▁Tab ith a ▁and ▁Napoleon ▁D ' um o ▁and ▁the ▁term ▁itself ▁to ▁judge ▁Adam ▁Sh ank man . ▁ ▁These ▁two ▁broad ▁categories ▁are ▁occasionally ▁supp lement ed ▁by ▁rout ines ▁which ▁are ▁label led ▁as ▁kr ump , ▁break dan cing , ▁wa ack ing , ▁and ▁ste pping . ▁ ▁Ball room ▁styles ▁ ▁Ball room ▁styles