While taping the
Tonight Show, funny man
Conan O'Brien hit his head during a stunt on Friday (September 25).
The 46-year-old late night host was unable to do the rest of the show and was rushed to Cedars Sinai Hospital.
During the stunt,
Conan was running a mock race against actress
Teri Hatcher who recently finished a triathalon.
"We did this bit and at the very end, when we ran in to cross the finish line,