Complex sentence: The song topped the Billboard charts in 1999, landing at the number one (1) spot on the Hot R&B/Hip Hop Singles and Tracks chart and the number four (4) spot on the Billboard Hot 100 chart.
Split into simpler sentences: The song topped the Billboard charts in 1999, landing at the number one (1) spot on the Hot R&B/Hip Hop Singles and Tracks chart. And the number four (4) spot on the Billboard Hot 100 chart.