Complex sentence: When Cliff Richard and the Shadows played in Singapore in 1961, he inspired many copycat acts, and public viewing of the Cliff Richard's films in the region were often augmented with local cover bands emulating their songs.
Split into simpler sentences: When Cliff Richard and the Shadows played in Singapore in 1961, he touched off many copycat acts. Public viewing of the Cliff Richard and the Shadows films in the region were often augmented with local cover bands emulating their songs.