Use reasoning to answer the following question.
Passage: The song is also sung at association football clubs around the world, where it is performed by a massed chorus of supporters on matchday; this tradition began at Liverpool F.C. after the chart success of the 1963 single of the song by the local Liverpool group Gerry and the Pacemakers.\n\nQuestion: Based on this passage, who sang you'll never walk alone in 1963?

Liverpool group Gerry and the Pacemakers
The important part for answering this question is: after the chart success of the 1963 single of the song by the local Liverpool group Gerry and the Pacemakers.

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The answer: Liverpool group Gerry and the Pacemakers