Jimmy Kimmel's "Celebrities Read Mean Tweets About Themselves" segment is always good for a laugh, but this re-think of the comedy skit turns all that completely on its head.
Some of the reactions are truly heartbreaking and you can even watch their extended interviews on Raising The Roof's channel. Just make sure you've got a box of tissues nearby.
Carolann Barr, executive director of Raising the Roof, said: "We can work together to prevent and end homelessness.
"Homelessness isn't just the people you see on the street."