98 Degrees: An American group that emphasized their “R&B soul” and muscular physiques. They were known for having a slightly more mature, ballad-heavy sound than their more dance-oriented rivals like ‘NSYNC.
Westlife: The kings of the UK and Irish charts, Westlife specialized in the “key change” ballad. They were less about choreography and more about standing in a line and delivering flawless vocal harmonies.
Comparison: 98 Degrees had more of a “boy band next door” American appeal with occasional R&B flavors. Westlife was a clinical hit-making machine in Europe, focusing on safe, romantic ballads that ensured long-term chart dominance.