qnli question: What genre of music did Lynda Thomas, Ricky Martin, Selena, Marc Anthony, Enrique Iglesias and Luis Miguel make? sentence: 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.