It's the 11th annual Burgers to Beat MS at participating A&W restaurants.
Thursday, $2 from every Teen Burger sold will help those living with Multiple Sclerosis.
The fast-food chain hopes to raise over $2 million during this year's campaign.
There are over 77,000 Canadians living with MS, that's one in every 385 people.
A&W has raised more than $13 million in the past 10 years for MS research, programs and services for those suffering from the disease.
You can also donate by clicking here.