Canadian electronica wunderkind Claire Boucher, who performs as Grimes, has unveiled a new song on video-sharing site YouTube, dedicated to her fans in Singapore and all around Asia.

The song, REALiTi, was posted on Sunday to an accompanying video made up of footage of the 26-year-old music producer travelling through various Asian cities. It has her dancing at Gardens by the Bay in Singapore, with the Supertrees behind her.

In her YouTube post, Grimes says: "Since this is no longer gonna be on the album, I'm releasing it as a special thank-you to everyone in Singapore, Kuala Lumpur, Manila, Jakarta, Hong Kong, Shanghai, Beijing, Taipei, Seoul, Osaka, Nagoya and Tokyo who came out to the shows.

"It was an honour to play with a bunch of amazing bands and travel to places I would never otherwise be able to go."

According to Grimes, the song was never completed, and is a demo from "the lost album" recorded in 2013.

"I lost the ableton file, so it's not mixed or mastered. I tried to doctor the mp3 into a listenable state, but it was poorly recorded in the first place and never meant to be heard by anyone, so it's a bit of a mess," she explains in the YouTube post.

Grimes made a name for herself in the indie music scene with her album Visions, a record which melds vocals with electronica, pop, hip-hop, R&B, and noise rock.

In 2013, she won a Juno Award for Electronic Album of the year for Visions.

She was last in Singapore in March 2013, where she performed two sold-out shows at the Esplanade Theatre Studios.