I want to know the answer to the following question:
Along with All-4-One, Boyz II Men, Rob Thomas, Christina Aguilera and Backstreet Boys, what 90s artists were notable in the pop/R&B genre?
All the background I'm provided with is that "Unlike the majority of 1980s mainstream singers, the 1990s mainstream pop/R&B singers such as All-4-One, Boyz II Men, Rob Thomas, Christina Aguilera, Backstreet Boys and Savage Garden generally crossed over to the AC charts.". Is that enough to answer the question?
Answer: yes