Complex sentence: On March 30,1998 in Argentina, while opening for the Rolling Stones, the crowd demanded to see the Stones during her set and became violent, throwing bottles and other objects at the stage, hitting her several times.
Split into simpler sentences: On March 30,1998 in Argentina, she was opening for the Rolling Stones. The crowd demanded to see the Stones during her set and became violent, throwing bottles and other objects at the stage, hitting her several times.