Kimmel Jimmied Open, Appendix Out

Late-night funnyman Jimmy Kimmel missed the taping of last night's show -- and for good reason.

TMZ has learned that Kimmel required an emergency appendectomy on Wednesday night in L.A., and though the surgery was successful, all tapings of "Jimmy Kimmel Live" have been canceled until Kimmel recovers.

His rep tells us that Jimmy "is resting comfortably and is looking forward to getting back to work."