Dan Rothman played the electric guitar during London Grammar's Monday night performance.
Dominic 'Dot' Major's contribution to London Grammar includes playing the keyboard, djembe and drums for the band.
London Grammar's 30-minute set before Coldplay included "Strong," one of the band's singles.
Hannah Reid sang vocals as part of London Grammar's opening performance for Coldplay.
Coldplay's lead singer Chris Martin played the piano during the opening of the performance.
Guy Berryman played the base guitar during Coldplay's Monday night performance at Royce Hall.
Coldplay's second song of the night was "Charlie Brown," a song off its fifth studio album.
Drummer Will Champion performed Monday, the day Ghost Stories, the band's sixth album was released.
Chris Martin compounded lead vocals with performances on the guitar and piano.