Grimes seems to have displayed some subtle 'traces' of ex-boyfriend, Elon Musk in her new song, "Player of Games".

Throughout the song, the 33-year-old singer - who split from SpaceX founder in September - sings about her love affair with "the biggest player".

"I'm in love with the best player," she says, "but he will always love the game more than I do."

According to NDTV.com, Musk was creating video games before becoming a millionaire at the age of 27. 

Speculation that Grimes's new song could be about Musk becomes even more evident around the 0:36 part of the music video, when she sings, “Sail in the cold space of space, even love could not keep you in your place.

Musk told Page Six exclusively in September that his job was the main reason for his separation from Grimes.

"Mostly my work at SpaceX and Tesla requires me to be mostly in Texas or travel overseas and its work is mostly in LA," he said at the time.

Grimes and Musk have been in a relationship for three years and have one child together: son X Æ A-12, known as "Baby X".

Musk shares five other children - twins Griffin and Xavier, 17, and twins Damian, Saxon and Kai, 15 - with his first ex-wife, author Justine Wilson.