Answer the following Q with stream of consciousness. 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.

Question: Based on this passage, who sang you'll never walk alone in 1963?
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. Therefore, the final answer is Liverpool group Gerry and the Pacemakers.