Boyz II Men and Chaka Khan

Boyz II Men, a quartet from Philadelphia, are the most commercially successful R&B group, famed for lush ballads and harmonies. Their hits include "End of the Road" and "One Sweet Day" with Mariah Carey. They've sold millions, winning multiple awards. Formed in 1987, they debuted with Cooleyhighharmony in 1991. They have worked with acts like Michael Jackson, and released albums like II, Twenty, and Under the Streetlight. Despite a member leaving in 2003, they've remained a strong touring group.

Chaka Khan, a Chicago-born versatile artist, rose to fame with Rufus in the '70s, blending soul, funk, rock, and jazz. She then launched a successful solo career with hits like "I'm Every Woman" and "I Feel for You." Khan boasts ten Grammy wins and has collaborated with icons like Quincy Jones, Prince, and Stevie Wonder. Her dynamic five-decade career includes influential albums in jazz and disco, with multiple chart-topping singles and awards.