![CANADA-VANCOUVER-PILLOW FIGHT-FLASH MOB](http://news.xinhuanet.com/english/photo/2014-04/06/133241616_13967493887291n.jpg)
Revelers take part in a pillow fight flash mob in downtown Vancouver, Canada, April 5, 2014. Vancouver celebrated the International Pillow Fight Day by holding a pillow fight flash mob at the Vancouver Art Gallery, which attracted over 200 participants. (Xinhua/Liang Sen)
![CANADA-VANCOUVER-PILLOW FIGHT-FLASH MOB](http://news.xinhuanet.com/english/photo/2014-04/06/133241616_13967493887921n.jpg)
Revelers take part in a pillow fight flash mob in downtown Vancouver, Canada, April 5, 2014. Vancouver celebrated the International Pillow Fight Day by holding a pillow fight flash mob at the Vancouver Art Gallery, which attracted over 200 participants. (Xinhua/Liang Sen)
![CANADA-VANCOUVER-PILLOW FIGHT-FLASH MOB](http://news.xinhuanet.com/english/photo/2014-04/06/133241616_13967493888281n.jpg)
Revelers take part in a pillow fight flash mob in downtown Vancouver, Canada, April 5, 2014. Vancouver celebrated the International Pillow Fight Day by holding a pillow fight flash mob at the Vancouver Art Gallery, which attracted over 200 participants. (Xinhua/Liang Sen)
![CANADA-VANCOUVER-PILLOW FIGHT-FLASH MOB](http://news.xinhuanet.com/english/photo/2014-04/06/133241616_13967493888661n.jpg)
Revelers take part in a pillow fight flash mob in downtown Vancouver, Canada, April 5, 2014. Vancouver celebrated the International Pillow Fight Day by holding a pillow fight flash mob at the Vancouver Art Gallery, which attracted over 200 participants. (Xinhua/Liang Sen)
![CANADA-VANCOUVER-PILLOW FIGHT-FLASH MOB](http://news.xinhuanet.com/english/photo/2014-04/06/133241616_13967493889171n.jpg)
Revelers take part in a pillow fight flash mob in downtown Vancouver, Canada, April 5, 2014. Vancouver celebrated the International Pillow Fight Day by holding a pillow fight flash mob at the Vancouver Art Gallery, which attracted over 200 participants. (Xinhua/Liang Sen)