Complex sentence: On 29 May 2006, "Crazy" by Gnarls Barkley replaced "Hips Don't Lie" by Shakira and Wyclef Jean at the top of the chart, and became the 500th number-one single in the New Zealand Singles Chart's history.
Split into simpler sentences: On 29 May 2006, Gnarls Barkley's "Crazy" took the number-one spot from "Hips Don't Lie" by Shakira and Wyclef Jean. This became the 500th number-one single in the New Zealand Singles Chart's history.