If you've been to Nathan Phillips Square over the past couple of days, you may have noticed a giant white ball sitting in front of city hall.

And no, it's not an homage to the Blue Jays. Instead it's part of a Nuit Blanche exhibition created by Director X - he directed Hotline Bling, along with a slew of other popular music videos.

The installation is called Death of the Sun and it'll open at around sunset on Saturday, October 1.

According to the Nuit Blanche website, it's an "immersive experience where the observer will witness a massive sculpture of the sun as it progresses through its life cycle. A deeply personal and highly evocative meditation on human mortality and people's individual place in the universe, this installation portrays the death of the star that sustains this planet."

Director X's project is part of the OBLIVION zone (located in Nathan Phillips Square and City Hall) curated by curated by Janine Marchessault and Michael Prokopow. The other Nuit Blanche installations will be scattered around the city, so you'll have to go seek them out this Saturday night.

Have you spotted this giant white ball? Let us know in the comments.

Photo by @ninjahmal.