Mary Chapin Carpenter appears Tuesday (April 27) on The Late Show With David Letterman to coincide with the release of her album, Between Here and Gone, earlier in the day. She'll be in New York to perform the album track, "What Would You Say." … Rascal Flatts also travel to New York for a May 7 appearance on Good Morning America. Taking a break from recording their third album in Nashville, they'll perform the current hit, "Mayberry."