The song made its debut on YouTube with the première of its official music video, posted by Black Hole on June 1, 2011.

[4] Prior to its release, "Promises" received promotional support from a selected crew of DJs, being featured in live sets, podcasts and radio shows in the form of various remixes.

[12][13] Set by a rocky shore, it features Mavie performing the song, in conjunction with scenery of the surrounding landscape.

It also features a special instrument built exclusively for the set, which takes the appearance of a piano fused with a phonograph and a music box.

The video features Mavie singing and playing an original piano arrangement of the song, with a slight touch of electronic sound processing.