There are always heroes inside C.S. Mott Children's Hospital, but some superheroes of a very different kind paid an extra-special visit to the little boys and girls.
In a heartwarming video, posted by the hospital onto YouTube, we can see what a big difference it made to these children's days when the window washing team fastened their capes and donned masked in a bid to bring some cheer to the wards.
Yup, that's right; Iron Man, Captain America, Spiderman, The Hulk, and Superman all came flying down to visit the patients.
Check it out:
We bet the window cleaners enjoyed the experience just as much as the children did; after all, it's not every day you get to dress up as your favourite superhero!
However, as with most of the planet's greatest heroes, the identities of the window washers have remained hidden at their request.
They want the focus to stay on the brave kids inside of the hospital and the everyday heroes that work to give them the best care possible.
Were you touched by this video?