Ottawa Folk Fest announced its 20th anniversary lineup on Tuesday morning, including performers such as Neil Young & Crazy Horse, Vampire Weekend, Patti Smith and Emmylou Harris.

The news quickly went viral on social media sites, with the festival's Twitter handle — @ottawafolk — trending in Ottawa and later, trending throughout Canada.

We've compiled some of the reaction below, and make sure to vote on the lineup in our poll.

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