Complex sentence: They performed with famous names such as Elvis Presley, Carl Smith (June's husband at the time), Ernest Tubb, and Johnny Cash and spent roughly ten years working the Grand Ole Opry as well as on various other radio broadcasts.
Split into simpler sentences: They performed with famous names such as Elvis Presley as well as Johnny Cash. They spent roughly ten years working the Grand Ole Opry as well as on various other radio broadcasts.