Complex sentence: Within a few hours of "wtfygd" being released it reached the number 5 spot on the iTunes R&B/Soul charts, and less than 24 hours after release it became the number one song on the charts for the genre.
Split into simpler sentences: Within a few hours of "wtfygd" being released it got to the number 5 spot on the iTunes R&B/Soul charts. Less than 24 hours after it was released it became the number one song on the charts for the genre.