While as the leaders of their respective groups Labelle and the Doobie Brothers, LaBelle and McDonald earned No. 1 Billboard Hot 100 singles, neither had a solo topper until this 1986 duet. Interestingly, the two singers hadn't met until well after the song was recorded and was scaling the chart -- as the single was put together on different coasts in different studios. As Fred Bronson notes in his "Billboard Book of Number One Hits," "As 'On My Own' went to No. 1 on the Billboard Hot 100, LaBelle and McDonald met for the first time -- at NBC Studios in Burbank (Calif.), where they performed the song on 'The Tonight Show Starring Johnny Carson.'"