"I'm an Adult Now" is a song by Canadian band The Pursuit of Happiness (TPOH). It was written in 1985, and produced independently  and first released in 1986 as a 12-inch single. Later that year, the band released a self-produced music video. As a result of the video viewership, all copies of the 12-inch single the band had pressed sold out. The band became an "independent success story" because of the song and video, and owing to this popularity was signed by Chrysalis Records in 1988.

The record label managers asked lead singer and songwriter Moe Berg for a list of "dream producers" for the band's forthcoming album, and he asked for Todd Rundgren. Berg was "shell-shocked" when Rundgren called him while the band was performing a sound check before a show in Winnipeg, telling Berg that he would be producing the band's album. Rundgren flew to Toronto to see the band perform in concert at the Diamond Club. After a Canada Day concert, the band drove from Toronto to the Utopia Sound Studios studios in Lake Hill, New York, where they set up for recording the next day. A preview concert was held at Lee's Palace on 23 September 1988.  and the album Love Junk was released on 26 October 1988. By March 1990 it had been certified a platinum album by Music Canada, exceeding 100,000 units shipped throughout the country. (Rundgren also produced the band's second album, One Sided Story.)

In January 1989, the Rundgren-produced remake of the song peaked at number 6 on the Billboard Alternative songs chart. It also peaked at number 6 on the modern rock chart and number 22 on the mainstream rock chart, on which it was featured for 11 weeks.