David Letterman, the longest-serving late-night talk show host in TV history, has just announced his retirement.
Letterman made the announcement during the taping of his show Thursday in New York, telling the audience his last show will take place in 2015.
He told the audience ... he's turning 67 and wants to spend more time with his family. Dave went on to say he'd be retiring in the next year or 2. The audience thought he was joking because he said, "Finally Paul and I can get married."