On last night's Late Show, guest Amy Adams and David Letterman decided to review one of poufy-lipped red carpet host Lisa Rinna's numerous gaffes on Oscar night. And after seeing this particular stomach-turning foul for the third time, we're gonna have to agree with Letterman and Adams, who essentially came to the conclusion that the soap star turned Joan Rivers 2.0 "should be fired." The best part? Even Rinna agrees!