Charlie Sheen and Drew Carey -- Photo Evidence
Here's proof Charlie Sheen can actually do something in Las Vegas that does NOT involve booze and escorts!
As TMZ first reported, Charlie jumped on stage during a taping of "Drew Carey's Improv-a-Ganza" last weekend at the MGM Grand Hotel & Casino.
We're told Charlie unexpectedly joined in the live performance to show off his own improv skills -- and Sheen won't be cut out of the show when it airs on Game Show Network in March.
