Chris Martin's Band Coldplay Honors WWI Veterans in 'All Your Friends' Music Video - Watch Now!

Chris Martin flashes a smile while shopping for some books on Friday (November 21) in Los Angeles.

The 37-year-old Coldplay singer was joined for the outing by a close friend.

PHOTOS: Check out the latest pics of Chris Martin

Check out a recent music video for Coldplay‘s bonus track “All My Friends,” which includes footage from World War I.

The video will be included in the band’s CD/DVD package Ghost Stories Live 2014, which will drop on Monday (November 24).

10+ pictures inside of Chris Martin shopping for books…