Colbert and "The Late Show" will wrap up on May 21.
21don MSN
Jimmy Fallon's "Tonight Show" to air rerun during Stephen Colbert's final "Late Show" episode
Fallon joins fellow late-night host Jimmy Kimmel in clearing the way for Colbert to make his farewell.
Jimmy Fallon and Jimmy Kimmel are clearing the airwaves in a show of solidarity with Stephen Colbert for his final show.
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