Kendrick Lamar previews new song in Beats by Dre commercial

Dr Dre has showcased a new ad for his Beats by Dre headphones, with the clip previewing a new Kendrick Lamar track.

The commercial sees Lamar recording with the producer, before the pair are puzzled about where to go next with the track. Of course, the product they’re trying to sell becomes the source of inspiration in the end.

Watch the clip below. The video’s caption of “Detox2014″ seems to suggest this track might feature on Dre’s long-rumoured next studio album.