Boyz II Men and The Isley Brothers

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.

The Isley Brothers, from Cincinnati, excelled in R&B, soul, and funk over decades. Known for "Shout" and "It's Your Thing," they collaborated with Jimi Hendrix and Santana. The group's evolution spanned styles, producing hits like "That Lady" and "Fight the Power." They overcame personal challenges, and their influence remains, marked by Grammy wins and notable collaborations.