On the same day Jennifer Aniston and company staged a Friends reunion on Jimmy Kimmel Live, Reese Witherspoon also went back in time.
But she didn't do so just for humor.
Instead, the Oscar winner dressed as Elle Woods (her beloved character in Legally Blonde) to support a four-year old fan with cancer.
Holding up a handmade sign on Instagram, the actress explained:
"This is for one of the strongest little four-year-olds I can imagine. Will - I hear that you're fighting so hard and strong against cancer and that in the hospital you've been watching a lot of Legally Blonde and loving it. I hope it makes you laugh!"