what is the profession of the latter person?
He is a DJ, turntablist, record producer, and record label executive
A-Trak
Alain Macklovitch (born March 30, 1982), known by his stage name A-Trak, is a Canadian DJ, turntablist, record producer, and record label executive. 
who sang someone that i used to know Kimbra when was it released? 5 July, 2011 is it a part of an album? Yes, Gotye's third studio album what is the name of the album? "Making Mirrors" what is the concept of the album? "It's more about reflection - the look at yourself that a mirror offers and also the way it gives you a different perspective on things around you" how was it received by the audience? It received generally positive reviews from music critics which film did the singer of the aforementioned song debut in? UNANSWERABLE where was he/she from? New Zealand what is the musical style? Eclectic has she collaborated with anyone for a song or album? Yes, with Mark Foster and DJ A-Trak for the track "Warrior"
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A-Trak [SEP] Introduction
Alain Macklovitch (born March 30, 1982), known by his stage name A-Trak, is a Canadian DJ, turntablist, record producer, and record label executive. He is the owner and President of the record label Fool's Gold which was founded in 2007 and is credited for developing the careers of artists such as Kid Cudi, Danny Brown, and Flosstradamus. A-Trak's career has spanned just over two decades, leading "Rolling Stone" to name him one of the 50 Most Important People in EDM. A-Trak is also part of the DJ duo Duck Sauce with Armand Van Helden, which was nominated for a Grammy in 2012 for their song "Barbra Streisand".