In terms of pop and rock musical hits, what is the most successful recording duo of all time?

According to the Recording Industry Association of America (RIAA), the title of best-selling musical duo of all time belongs to the Philadelphia-based pair of Daryl Hall and John Oates. Throughout the late 1970s and early 1980s, they crafted an incredible string of hits that resulted in six No. 1 singles on the Billboard Hot 100, including "Rich Girl," "Maneater," and "I Can't Go for That (No Can Do)."

Their massive success was built on a unique and infectious fusion of rock, pop, and R&B, a style often referred to as "blue-eyed soul." This blend of catchy melodies with soulful arrangements gave them a broad crossover appeal that few artists could match. Their rise to superstardom also coincided perfectly with the dawn of the MTV era, where their distinctive looks and well-produced music videos became a constant presence, further cementing their place in pop culture history.

The duo's legacy is not just in their sales figures but also in their lasting influence. Their music remains a staple on the radio and has been widely sampled by hip-hop and pop artists for decades. The iconic drum machine beat from "I Can't Go for That (No Can Do)" is one of the most recognizable and reused rhythms in modern music, a testament to their enduring and groundbreaking sound.