John Legend, Salma Hayek and Julia Roberts also sign open letter to mark "critical moment in history" for women
Band announced 'Kaleidoscope' EP will come out June 2nd
Electronic duo and Chris Martin mark live debut at BRIT Awards
UK band refutes rumors of alleged November show in Dead Sea area
Coldplay singer lends hand, performs at London homeless shelter
Coldplay singer also took a crack at David Bowie and Prince at a Manhattan benefit concert
Demi Lovato, Indian musicians, Bollywood celebrities will join concert benefiting Miracle Foundation
Singer, comedian employ hats, bad accents for goofy late-night rendition of 2000 song
Band adds 18 more shows to itinerary, including band's first Canadian gigs in five years
Band and 'Late Late Show' host honor Prince at Sunday's Rose Bowl concert in Los Angeles
Super-8 footage captures band's sold-out, stadium-filling Latin American tour from April 2016
Coldplay singer employs guitar, loop pedal for solo rendition during band's Philadelphia concert
Actor performed the Penguins' "Earth Angel," Chuck Berry's "Johnny B. Goode" after request from Chris Martin's son
Chris Martin, Lianne La Havas duet on heartwrenching 'Parade' ballad, "Sometimes It Snows in April"
From metalhead wildlings to Coldplay cameos, the rockers, pop stars and crooners who've graced 'GoT'