Complex sentence: They appeared on the radio shows Rock Line, King Biscuit Flower Hour (KBFH), The Source and Westwood One and also began headlining showcase clubs across the United States, setting attendance records as they went.
Split into simpler sentences: They appeared on the radio shows Rock Line, King Biscuit Flower Hour (KBFH), The Source and Westwood One. They also began headlining showcase clubs across the United States, setting attendance records as they went.