It's Raining Again is a song recorded by British progressive rock band Supertramp and released as a single from their 1982 album ... Famous Last Words ... with credits given to Rick Davies and Roger Hodgson, although as indicated on the album sleeve, it is a Hodgson composition. The end of the song incorporates the old nursery rhyme It's Raining, It's Pouring.\n\nAnswer this question: who sings the song it's raining again
Let's be accurate as possible. Think before you answer.
Supertramp
The important part for answering this question is: "It's Raining Again" is a song recorded by British progressive rock band Supertramp and released as a single from their 1982 album.

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Famous Last Words.

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with credits given to Rick Davies and Roger Hodgson, although as indicated on the album sleeve, it is a Hodgson composition.

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The final answer: Supertramp