Complex sentence: The single is also Janet's biggest hit on the Hot 100 Airplay, where it spent ten weeks at number one, in addition to being Jackson's most successful single in the U.S. to date.
Split into simpler sentences: The single is also Jackson's biggest hit on the Hot 100 Airplay, where it spent ten weeks at number one. This song is Jackson's most successful single in the U.S. to date.