Chris Martin of Coldplay sings at the Brit Awards in London Wednesday Feb. 15, 2006. The awards given annually are the most prestigious awards in the British music industry.

British music group Coldplay's Chris Martin performs during his concert in Hong Kong Thursday, July 13, 2006. Coldplay frontman Chris Martin said the band doesn't want to impose their political beliefs on others, but that band members feel an obligation to use their celebrity for a good cause. "We don't want to be preachy, we just say those words (fair trade), and make sure people look it up themselves," Martin said at a press conference in Hong Kong ahead of a Coldplay concert Thursday.

Coldplay lead Singer Chris Martin performs at the American Music Awards in Los Angeles on Sunday, Nov. 23, 2008.

Coldplay poses for photographers before the MTV Movie Awards at the Gibson Amphitheater in Universal City, Calif. on June 1, 2008.

Will Champion, of Coldplay accepts the award for Song of the Year for "Viva La Vida" at the 51st Annual Grammy Awards on Sunday, Feb. 8, 2009, in Los Angeles.

Chris Martin and Coldplay perform during the All Points West Music Festival at Liberty State Park Sunday, Aug. 2, 2009, in Jersey City, N.J.

Chris Martin of Coldplay performs at the Glastonbury Festival at Worthy Farm, Pilton on June 25, 2011 in Glastonbury, England.

Festivalgoers watch Coldplay perform on the main Pyramid Stage at the Glastonbury Festival site at Worthy Farm, Pilton on June 25, 2011. The festival, which started in 1970 when several hundred hippies paid 1 pound to watch Marc Bolan, has grown into Europe's largest music festival attracting more than 175,000 people over five days.

Chris Martin of Coldplay performs live on the pyramid stage during the Glastonbury Festival at Worthy Farm, Pilton on June 25, 2011 in Glastonbury, England.

Will Champion and Chris Martin of Coldplay perform onstage at Coldplay in Concert presented by Samsung AT&T Summer Krush 2011 benefiting the Grammy Foundation and its music education programs for high school students and schools, at UCLA Tennis Center on August 3, 2011 in Westwood, California.

Musician Guy Berryman of the band Coldplay performs onstage at the iHeartRadio Music Festival held at the MGM Grand Garden Arena on September 23, 2011 in Las Vegas, Nevada.

Musician Chris Martin of the band Coldplay performs onstage at the iHeartRadio Music Festival held at the MGM Grand Garden Arena on September 23, 2011 in Las Vegas, Nevada.

Chris Martin of Coldplay performs onstage at the iHeartRadio Music Festival held at the MGM Grand Garden Arena on September 23, 2011 in Las Vegas, Nevada.

Musician Chris Martin of Coldplay perform onstage at the iHeartRadio Music Festival held at the MGM Grand Garden Arena on September 23, 2011 in Las Vegas, Nevada.

Coldplay in Chicago, Aug. 5, 2011.

Coldplay in Chicago, Aug. 5, 2011.

Coldplay in Chicago, Aug. 5, 2011.

Guy Berryman of Coldplay, Chicago, Aug. 5, 2011.

Coldplay, Chicago, Aug. 5, 2011.

From left: Coldplay's Chris Martin, Guy Berryman and Jonny Buckland, in Chicago, Aug. 5, 2011.

Chris Martin of Coldplay performs live for fans at Enmore Theatre on June 19, 2014 in Sydney, Australia.

Musician Jonny Buckland of Coldplay performs onstage during the 2014 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 19, 2014 in Las Vegas, Nevada.

Musician Chris Martin of Coldplay performs on stage at the 2015 Global Citizen Festival to end extreme poverty by 2030 in Central Park on September 26, 2015 in New York City.

Artist Chris Martin of Coldplay performs onstage during the Telekom Street Gigs at Capitol on December 8, 2015 in Offenbach, Germany.

Musician Chris Martin of Coldplay performs onstage at the 2015 iHeartRadio Music Festival at MGM Grand Garden Arena on September 18, 2015 in Las Vegas, Nevada.

Musician Will Champion of Coldplay performs onstage at the 2015 iHeartRadio Music Festival at MGM Grand Garden Arena on September 18, 2015 in Las Vegas, Nevada.

Musician Guy Berryman of Coldplay performs onstage at the 2015 iHeartRadio Music Festival at MGM Grand Garden Arena on September 18, 2015 in Las Vegas, Nevada.

Singer Chris Martin of Coldplay performs onstage at the 2015 iHeartRadio Music Festival at MGM Grand Garden Arena on September 18, 2015 in Las Vegas, Nevada.

Singer Chris Martin of Coldplay performs onstage at the 2015 iHeartRadio Music Festival at MGM Grand Garden Arena on September 18, 2015 in Las Vegas, Nevada.