Callum 'Cajama' McDonald has became a meme in these past few months thanks to the new implementation of livestreaming on the website – facebook.com

Callum usually does quite professional livestreams on facebook, sometimes on big labels such as Tuvali or FATED. A speciality to his livestreams is his face pulling and reactions to certain tracks. He will pull such a face if he highly likes or dislikes a track, but the expression is different and unpredictable each time.

Callum's streams usually reach up to 100+ people, which has made him a target of being screenshotted at just the right moment to capture that expression, in which slowly grew into a trend in his livestreams and then it eventually became a widespread meme within the "The Future Of House" and other groups on facebook.com. It is not completely widespread into mainstream media yet but it is a enjoyable meme for the underground memeing community and the music community as a whole.