More than 400 local musicians are ready to hop in and help the cause, prepared to play on until they pass the standing record of 16 days.
The Guinness rulebook states that there can only be 30-second stops between songs and five-minute breaks between bands. Songs must also be at least two minutes long and cannot be repeated for four hours after it's been played. Furthermore, at least 10 audience members must be up and awake at all times during the marathon set.
The Stouffville pub isn't the only establishment vying for the record-holder title, though. A pub in Detroit has already begun playing in hopes of shattering the existing record — one currently held by Las Vegas pub Ri Ra, which put on a show that lasted 372 hours and 10 minutes back in 2014.
The pub has also partnered with a different charity for each of the 16 days, raising funds for the likes of Habitat for Humanity, CMHA and the Gord Downie Fund. Follow the pub on Facebook for full updates throughout the record-breaking attempt.