One big name on a red-hot hit is great, but sometimes two superstar voices come together in an inspired pairing that is truly special. With Valentine's Day's celebration of couples in mind, our experts dove into over 50 years of biggest songs by two singers to ever hit the chart. So grab a box of chocolates, dim the lights, cozy up to that special someone and turn up the speakers as we count down the hottest duets of all time. Insidermonkey experts made a list of 10 good karaoke duets for couples.
This chart is comprised only of songs where two singers share equal vocal duties on the track. Ranking is based on actual performance on the weekly Billboard Hot since the chart launched in August 1958. Songs are ranked based on an inverse point system, with weeks at No. 1 earning the greatest value and weeks at No. 10 earning the least. You can also check our list of 11 best karaoke songs for groups.