Chris Martin performs ‘Princess Of China’ at the Summertime Ball 2012 with Coldplay. This image appears in the gallery:Coldplay Live At The Summertime Ball 2012 - Pictures 7. Chris Martin performs ‘Princess Of China’ at the Summertime Ball 2012 with Coldplay. 20 images See the full gallery: Coldplay Live At The Summertime Ball 2012 - Pictures