Law & OrderNBC has officially canceled its cornerstone legal series 'Law & Order,' the network confirmed today in a press release.

"The full measure of the collective contributions made by Dick Wolf and his 'Law & Order' franchise over the last two decades to the success of NBC and Universal Media Studios cannot be overstated. The legacy of his original 'Law & Order' series will continue to make an impact like no other series before," Jeff Gaspin, Chairman of NBC Universal Television Entertainment said in a statement.

'Law & Order' will have its series finale on Mon., May 24 at 10PM ET. The show ends after 20 seasons on the air, which ties 'Gunsmoke''s record as the longest-running drama in television history.