The album was first released on January 23, 2001 in the United States. The album contained a total of twelve tracks. Around this time, the album was also released in Japan, with two bonus remixes exclusively for the market. In March 2001, the band were asked into the studio to record a song for the Dr. Dolittle 2 soundtrack. The track, "We Fit Together", featured on the soundtrack, released in June 2001. Following the release of "All or Nothing", the album was released in Europe and the United Kingdom on August 6, 2001 complete with "We Fit Together" as a bonus track, bringing the number of tracks to thirteen. As "We Fit Together" was not included on the original American version of the album, American fans were treated to a 'Special Fan Edition' of the album on May 28, 2002. The fan edition also included an exclusive CD-ROM section. The fan edition was also made available in Germany.
The album was released following the success of the band's top 10 hit, "Liquid Dreams". The album peaked at #5 and spawned the follow-up singles "All or Nothing", "We Fit Together" and "Love Should Be A Crime". "All or Nothing" peaked at #3 on the Adult Contemporary chart. "We Fit Together" stalled at #4 on the BillboardBubbling Under Hot 100 Singles Chart. "Love Should Be a Crime", was not featured on any of Billboard's charts at all, although it made it to the top 40 in the UK, becoming the lowest-charting single from the album. 
O-Town received mixed-to-negative reviews from critics. Allmusic gave the following review:
It's finally come to this. The manufacturing of teen pop has reached its nadir with O-Town, a quintet of squeaky-clean boys pulled from a thousand hopefuls whose struggles were detailed, step by step, on Making the Band. Stuffing both reality TV and boy band marketing down the throats of viewers, the limited-run series weeded out a bunch of contenders, through sweat and tears - lots of the latter, to give listeners Ashley, Dan, Erik, Jacob, and Trevor: O-Town! And on their flaccid self-titled debut, the fivesome go through the motions directed to them by a squad of industry moneymakers. To say there isn't an ounce of sincerity to be found within the 12 songs here is pretty much taken for granted. That the entire project whiffs of cynicism is inexcusable."