MOSCOW (AP) — The global campaign to free Pussy Riot is gaining speed: Supporters of the punk provocateur band mobilize this week in at least a two dozen cities worldwide to hold simultaneous demonstrations an hour before a Russian court rules on whether its members will be sent to prison.

Friday's rallies will ride a wave of support for the three women who have been in jail for more than five months because of an anti-Putin prank in Moscow's main cathedral. Calls for them to be freed have come from a long list of celebrities such as Madonna and Bjork. Protests have been held in a number of Western capitals, including Berlin, where last week about 400 people joined Canadian electro-pop performance artist Peaches to support the band.

In one of the most extravagant displays, Reykjavik Mayor Jon Gnarr rode through the streets of the Icelandic capital in a Gay Pride parade this weekend dressed like a band member — wearing a bright pink dress and matching balaclava — while lip-synching to one of Pussy Riot's songs.