Complex sentence: Charles Eugene "Pat" Boone (born June 1,1934) is an American singer, actor and writer who was a successful pop singer in the United States during the 1950s and early 1960s.
Split into simpler sentences: Charles Eugene "Pat" Boone (born June 1,1934) is an American singer, actor and writer. He was a successful pop singer in the United States during the 1950s and early 1960s.