birth_place nationality known_for article_title name occupation
moscow , russia russian standard ballroom katusha demidova
 katusha demidova dancer
katusha demidova

katusha demidova is a russian professional ballroom dancer and instructor , now residing in the usa .
she is the 2009 , 2010 , 2011 , 2012 , 2013 and 2014 professional world ballroom dance champion , and also the international professional , and british open , ballroom champion .
her partner in these events was arunas bizokas .
she is the sister of anna demidova who is also a dancer .
demidova previously danced with jonathan wilkins , who came second in the 2009 world event with hazel newberry .
the wilkins -- demidova partnership lasted from 1996 to 2007 , culminating in a first place finish in the usa open professional standard .
demidova has with partners wilkins and bizokas held the u.s. national professional standard championship title continuously since 1998 .
