Rehearsals were called off for one day

Two of the Top 4 finalists of FOX's "So You Think You Can Dance" pushed themselves a little too hard over the weekend.

Stephen "Twitch" Boss, Katee Shean, Courtney Galiano and Joshua Allen were rehearsing on Saturday, Aug. 2 when two of the dancers had to be rushed to the Cedars Sinai Medical Center for dehydration, reports People.

"Two went in [Saturday] and so there was no more rehearsals, and today [Sunday] all the rehearsals were called off," show judge Mary Murphy said at the 2008 Teen Choice Awards. "The kids are completely dehydrated –- two of them. I'm sure they're doing a lot of blood work to see if there's anything else."

Supposedly, the production tried to keep the competition an even playing field. Murphy adds, "The other two could not rehearse as well, and so hopefully everybody is going to be in the same boat…hopefully everybody will be refreshed by having a full day off."

Rehearsals resumed Monday, and the four will dance for the title of America's favorite dancer on Wedensday, Aug. 6 with the results announced at the end of the two-hour finale -- featuring the Jonas Brothers -- the following night.