In 2010, Lane Goodman was diagnosed with stage IV rhabdomyosarcoma, a rare cancer that affects about 350 children in the United States each year.

The now 13-year-old boy has relapsed twice since then and the cancer has spread to his brain, according to a Facebook page set up in his name.

Photos of the brave boy smiling from the hospital, giving a thumbs up to the camera, have prompted an outpouring of support, and celebrities – from country star Rodney Atkins to Anderson Cooper – are now joining in the viral movement.

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