▁are ▁also ▁seen ▁regularly ▁in ▁every ▁performance ▁episode . ▁ ▁These ▁rout ines ▁may ▁use ▁the ▁movement ▁of ▁traditional ▁International ▁Standard ▁forms ▁or ▁lean ▁toward ▁American ▁compet itive ▁styles ; ▁other ▁rout ines ▁may ▁use ▁street ▁or ▁regional ▁variants , ▁or ▁may ▁combine ▁elements ▁of ▁different ▁variations . ▁ ▁Jazz , ▁Broadway , ▁and ▁musical ▁the ater ▁styles ▁ ▁Jazz ▁is ▁featured ▁in ▁nearly ▁all ▁performance ▁episodes . ▁ ▁While ▁these ▁rout ines ▁are ▁typically ▁label led ▁simply ▁" J azz ", ▁the ▁genre ▁is ▁notable ▁as ▁being ▁one ▁of ▁the ▁most ▁fus ional ▁featured ▁on ▁the ▁show ▁and ▁various ▁style ▁combinations ▁and ▁sub - categories ▁have ▁been ▁referenced . ▁ ▁Des c ended ▁from ▁Jazz ▁but ▁treated ▁as ▁a ▁separate ▁genre ▁on ▁SY TY CD , ▁" B road way " ▁is ▁analog ous ▁to ▁the ▁label ▁" Mus ical ▁Theater " ▁outside ▁the ▁U . S . ▁ ▁American ▁social ▁styles ▁ ▁These ▁dance ▁styles ▁are ▁featured ▁less ▁frequently ▁than ▁their ▁ball room ▁relatives , ▁but ▁have ▁been ▁seen ▁inter mitt ently ▁since ▁the ▁first ▁season . ▁ ▁Regional / trad itional ▁styles ▁ ▁In ▁addition ▁to ▁the ▁broad ▁categories ▁above , ▁many ▁more ▁styles ▁that ▁are ▁less ▁common ▁in ▁the ▁U . S . ▁are ▁sometimes ▁featured . ▁ ▁Most ▁of ▁these ▁are ▁seen ▁only ▁once , ▁but ▁the ▁Bol lywood ▁style ▁has ▁been ▁featured ▁several ▁times ▁per ▁season ▁since ▁the ▁fourth ▁season . ▁ ▁Grand ▁final ists ▁ ▁Special ▁shows ▁On ▁September ▁ 2 , ▁ 2 0 0