The Circus Starring Britney Spears: 두 판 사이의 차이

출처:<ref name=pcdnewo>{{cite news|url=http://www.mtv.com/news/articles/1606240/20090303/the_pussycat_dolls.jhtml|title=Pussycat Dolls Warm Up New Orleans Crowd For Britney Spears|date=2009-03-03|accessdate=2010-01-04|last=Montgomery|first=James|work= [[MTV]]|publisher=[[MTV Networks]]}}</ref><ref name=jaiho>{{cite news|url=http://www.mtv.com/news/articles/1606419/20090305/the_pussycat_dolls.jhtml|title=Pussycat Dolls On Joining Britney Spears' 'Amazing' Circus|date=2009-03-05|accessdate=2010-01-04|last=Montgomery|first=James|work= [[MTV]]|publisher=[[MTV Networks]]}}</ref>

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* [[조딘 스팍스]] <small>(북아메리카, select venues)</small><ref>{{cite news|url=http://www.mtv.com/news/articles/1618844/20090817/jordin_sparks.jhtml|title=Jordin Sparks Joins Britney Spears' Circus Tour|date=2009-08-17|accessdate=2010-01-04|last=Vena|first=Jocelyn|work= [[MTV]]|publisher=[[MTV Networks]]}}</ref>

* [[크리스티니아 드바지]] <small>(북아메리카)</small><ref name=jordin/>