Machine Gun Kelly just announced a free last-minute show at a tiny Toronto venue

One of the biggest stars of the moment, Machine Gun Kelly, just announced what is a dream come true for Toronto fans: a local intimate pop-up gig that is, if you can believe it, completely free.

The rap/rock performer revealed late Wednesday afternoon that he would be playing a very last-minute concert at the city's small but iconic Horseshoe Tavern just hours later, with the show set to start at 8 p.m.

Earlier in the day, MGK posted a cryptic Instagram story alluding that he was in the 6ix, which included a selfie along with a single "hush" emoji.

Those among his 9.1 million followers who were keeping up then saw a flyer for the concert posted for the very first time around 4 p.m., with the celeb writing in another story that the show would be completely free of charge, and open to only 300 people.

An Instagram story that the star posted around 4 p.m. was the first fans heard of the event, which was scheduled to start just four hours later.

At the time of publication — less than an hour after the news broke — there is already a lineup of people forming outside the Queen Street West establishment, all of them happy to wait more than three hours for the chance to see the singer up close and in person.

This isn't the first time that the humble Horseshoe has hosted such a big name this year, either: in January, legendary country star Keith Urban took the stage, with resale tickets going for more than $1,000.