– Sales: 7,380,000

In 1995, American audiences were introduced to Canadian singer Alanis Morissette by way of her third studio album, “Jagged Little Pill,” which took a refreshingly candid approach toward relationships. Nowhere was that approach more evident than on the album’s lead single, “You Oughta Know,” in which Morissette calls out a former lover for his indiscretions. According to legend, the song is about actor Dave Coulier of “Full House” (and later “Fuller House”), though that claim has never been verified.