This Bruno Mars photo contains
pianiste and accompagnateur.
There might also be
grand piano, grand, grand piano grand, piano à queue, piano, pianoforte, piano forte, grand concert, concert de piano, concert grand piano concert, and piano de concert.
piano cover and tutorial for Locked Out of Heaven par Bruno Mars from Unorthodox Jukebox album. This piano arrangement is made par Pianocrumbs and available online at: link