Complex sentence: The song also won Warnes and Medley the Grammy Award for Duo or Group with Vocal, reached No.1 on the Billboard Hot 100 and spent four consecutive weeks at No.1 on the Adult Contemporary chart.
Split into simpler sentences: The song also won Warnes and Medley the Grammy Award for Duo or Group with Vocal. It reached No.1 on the Billboard Hot 100 and spent four consecutive weeks at No.1 on the Adult Contemporary chart.