In just 18 songs, this colorful comp sums up the wonderful diversity of ’90s pop. The decade kept us hot, getting us to shake our rumps to Wreckx-N-Effect's salacious, sax-sampling rap before Will Smith had us "Gettin' Jiggy Wit It" over an infectious, disco-flavored beat. R&B was just as sizzling, with TLC's soulful balladry and Boyz II Men's smoking harmonies. And don't forget the young Britney Spears, who cranked up the heat even further with her kittenish debut smash, "…Baby One More Time."