Last year the top spot in ArtReview magazine's Power 100 was held by Ai Weiwei. Political activism will be recognised again in this year's lineup of art-world movers and shakers with the inclusion of Pussy Riot who, according to the editor of ArtReview, are positioned "somewhere in the middle of the list". The 2012 Power 100 will be announced later this week.
Image: Pussy Riot performing at Red Square in Moscow
