"At Your Best (You Are Love)" was originally recorded by the Isley Brothers in 1976 but was revived by Aaliyah in 1994. The song was featured on her debut album Age Ain't Nothing but a Number and released as its second single.

It peaked at #6 on the Billboard Hot 100 chart and #2 on the R&B singles chart and went gold. The song became an even bigger hit when the remix featuring R. Kelly dropped. Check out the video for the original where Kels makes a cameo.

Aaliyah: One in a Million airs August 25th at 8P/7C.

(Photo: Kevin Winter/Getty Images)