"So Pure" is a rock song written and produced by Alanis Morissette and Glen Ballard for Morissette's fourth album Supposed Former Infatuation Junkie (1998). While it was released in Japan during the spring of 1999 as the second single, it was released internationally as the album's third single on June 14, 1999 (see 1999 in music), and it is uptempo and reminiscent in sound to the dance-pop music Morissette recorded before her third album Jagged Little Pill (1995). One line in the song, "supposed former infatuation junkie", inspired its album's title. The single was released to U.S. radio stations on June 29 and received little play, peaking outside the top twenty on Billboard magazine's Adult Top 40 and Top 40 Mainstream charts. "So Pure" failed to chart on the U.S. Billboard Hot 100 and