Complex sentence: "Rockstar 101" made its first chart appearance on the United States' "Billboard" Hot Dance Club Songs chart, where it peaked at number two; it stayed on the chart for a total of 14 weeks.
Split into simpler sentences: Rockstar 101 made its first chart appearance on the United States' "Billboard" Hot Dance Club Songs chart, where it peaked at number two. It stayed on the chart for a total of 14 weeks.