Complex sentence: They recorded a demo, "Space Groove", in 1984 and released their first single "To Give You Love" in 1986 before making a stylistic breakthrough with their subsequent 1986 single "Ego Trippin'".
Split into simpler sentences: They recorded a demo, "Space Groove", in 1984 and released their first single "To Give You Love" in 1986. The group made a stylistic breakthrough with their subsequent 1986 single "Ego Trippin'".