A week after Skrillex picked up three Grammy awards (one for each category he was nominated in), the DJ and producer released a new track. But it won't be eligible for next year's Grammys—the new music is built into an advertisement for the denim company G-Star.

The 25-year-old musician, born Sonny Moore, once licensed a track for a GoPro cameras commercial, but this marks the first time he has composed original music for a brand. (He has also moved into scoring movies, including the coming pulp flick "Spring Breakers," starring James Franco and directed by Harmony Korine.) As the culture of electronic dance music has taken off, the stars of the genre have emerged as darlings of Madison Ave., which loves stylish and propulsive music that doesn't distract ad viewers with a bunch of lyrics.

The one-minute G-Star video animates the steps in making jeans, from cotton fiber to metal rivets. The accompanying music starts on a quiet note, then builds to an aggressive Skrillexian climax as a denim-clad skeleton dog breaks into a run. We spoke to the DJ about the spot, why he doesn't mind ads that steal his sound, and about other ventures, including a new YouTube channel and a coming residency at the Cirque du Soleil nightclub in Las Vegas.

How did the relationship with G-Star begin?

I'm not someone who does stuff just for the sake of doing it. I've been a fan of G-Star since I was a young kid and always wore their jeans. There's one of their designs [the Elwood] that I wore for about two years straight. I ended up meeting one of the reps randomly in Amsterdam for the Lowlands festival last year, and then met their creative director and marketing team.

Which came first, the video or your track?