The Hearts and Smiles campaign is off to a roaring start, raising more than $700,000 for frontline healthcare workers in Canada in less than 24 hours.

Organized by Rogers Sports & Media, the campaign sells limited-edition masks and t-shirts, with all proceeds going to 150 Canadian hospital foundations through the Frontline Fund.

You can purchase a t-shirt ($30), a t-shirt & mask combo ($40) or a 10-pack of masks ($90).

Nurses Eryn and Christine have our back. And we have theirs. #CoverUs

Support the frontline by getting your shirts or masks here: https://t.co/w4nPfJlejQ #InternationalNursesDay | #HeartsAndSmiles pic.twitter.com/TMh09YuPpJ

— The Frontline Fund (@frontline_fund) May 12, 2020

More than 15,000 Hearts and Smiles shirts and masks have been sold as of Wednesday, per CityNews.

Thank you @RickMercer @Jason_Priestley Walter Gretzky and so many more for helping to spread the word about our #HeartsAndSmiles campaign in support of the @frontline_fund pic.twitter.com/flCJPGIFac

— Rogers Sports & Media (@RSMCanada) May 13, 2020

There's been a number of famous faces among those customers, including singer Brett Kissel, Olympic medallist Rebecca Johnston, comedian Rick Mercer, American basketball player Charles Barkley and several Canadian politicians.

Canada's favourite hockey dad Walter Gretzky was even spotted wearing a Hearts and Smiles t-shirt.

Big thanks to Canada’s favourite hockey dad Walter Gretzky for his support of Hearts and Smiles! All in support of The Frontline Fund. #HeartsandSmiles ❤️😊🇨🇦 🏒 pic.twitter.com/LLtIgH44ZE

— Christine Simpson (@SNChrisSimpson) May 13, 2020

And the singer for the Canadian band the Arkells was decked out in a Hearts and Smiles t-shirt and mask when he gave healthcare workers a shout-out on Twitter.

All love for all nurses on International Nurses Day. #HeartsAndSmiles tees & masks launched today in support of 🇨🇦 frontline heathcare workers, in recognition of their noble work to keep us safe: https://t.co/nEcwlnXdN2 ♥️ pic.twitter.com/3m5xOjScaF

— ARKELLS (@arkellsmusic) May 12, 2020

While the drummer of the beloved band The Barenaked Ladies put together a catchy ditty to celebrate healthcare workers while rocking a Hearts and Smiles t-shirt.

RT @Baldy67: Big Love to doctors, nurses, paramedics, hospital and clinic staff for continuing their vital work during the pandemic. Shirts and masks support the @Frontline_Fund at https://t.co/TXWtMt9qEE #InternationalNursesDay pic.twitter.com/iiJHzVED4V

— Barenaked Ladies (@barenakedladies) May 12, 2020

The Hearts and Smiles campaign will run until Friday.