Complex sentence: The trio then all joined Red-E-Lewis and the Redcaps, who became the Redcaps, backing Cuddly Dudley, when Reddy Lewis left, Mick Green joined Johnny Kidd & the Pirates in 1962 and then Billy J. Kramer & the Dakotas in 1964.
Split into simpler sentences: The trio then all joined Red-E-Lewis and the Redcaps, who became the Redcaps, backing Cuddly Dudley, when Reddy Lewis left. Spence, Farley and Green joined Johnny Kidd & the Pirates in 1962, but then Green left to join Billy J. Kramer & the Dakotas in 1964.