To Write Love On Her Arms held their annual HEAVY AND LIGHT event, and members of Switchfoot, Thrice, Nekokat, Copeland and more joined together to share a special cover of Tom Petty's "I Won't Back Down."

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Switchfoot's Jon Foreman dedicated the final song to the Parkland community, a special ending to the evening filled with songs, conversation and hope.

Watch the powerful performance below:

HEAVY AND LIGHT is an event offering a loving and supportive environment for people to walk away knowing they're important and their story is important.