Complex sentence: In October 2003, it debuted at number 95 on the "Billboard" Hot 100 chart, becoming Kelis's second entry on the chart, following "Caught Out There", which spent twelve weeks on the chart between December 1999 and February 2000.
Split into simpler sentences: In October 2003, it debuted at number 95 on the "Billboard" Hot 100 chart. It was Kelis's second entry on the chart, following "Caught out There", which spent twelve weeks on the chart between December 1999 and February 2000.