Which 1979 duet by Donna Summer and Barbra Streisand topped the Billboard Hot 100?

Donna Summer and Barbra Streisand’s 1979 duet “No More Tears (Enough Is Enough)” topped the Billboard Hot 100.

The song was written by Bruce Roberts, Paul Jabara, and Gary Osborne, with production by Giorgio Moroder and Gary Klein. It paired two of the most prominent female vocalists of the period in a dramatic disco arrangement built for a large, emphatic duet performance.

The single reached number one on the Billboard Hot 100 in November 1979. It also became a major international success and is widely regarded as one of the biggest disco-era collaborations.

The record appeared on both artists’ albums: Summer’s On the Radio and Streisand’s Wet. Its extended title is important because “Enough Is Enough” is commonly used informally, but the canonical single title includes both phrases.