It's hard to believe, but American treasure Betty White has been gracing our television screens -- and stealing our hearts -- since the 1940s. So for her recent 93rd birthday, White's costars and crew from her TV Land series "Hot in Cleveland" wanted to do something special for the actress.

In a clip posted by TV Land, White is being driven to the set, when she's greeted by a hulu dancer. According to the network, this is a daily ritual for White, whose assistant usually performs the dance for her.

But in honor of White's birthday (which was Saturday), the entire cast and crew of "Hot in Cleveland" got in on the action, throwing the actress a surprise hula flash mob, which culminated in a dance featuring co-stars Jane Leeves, Valerie Bertinelli, Wendie Malick, and Garry Marshall. As the golf cart carrying White made its way through the crowd, and the birthday girl realized what was happening, her face filled with emotion; you can tell that the surprise meant a lot to White, and it's hard not to get a little misty right along with her.

"At 93, you shouldn't be doing this!" the stunned star exclaimed to the crowd.

Check out the sweet clip below. Happy birthday, Betty!

Photo credit: Getty Images for TV Land