In his book, Tunesmith: Inside the Art of Songwriting, Jimmy Webb says that Harry Nilsson asked permission from Webb to use the phrase "Up, Up, and Away" in Nilsson's "Gotta Get Up."
In 1971 when Harry Nilsson and I were chumming around London together and he was recording the Nilsson Schmilsson album produced by Richard Perry (one of the best albums ever made), he came to me as a pal over a snifter of brandy. He asked me, almost contritely, if he could borrow the phrase "up, up and away" for a delightful send-up song called "Gotta Get Up."
-- Jimmy Webb [1]