Britney & Kevin: Chaotic is a limited-run reality television series, starring pop music singer Britney Spears and her then husband, Kevin Federline. It follows their initial meeting, falling in love, and wedding. Footage is primarily comprised of the couple's home videos and interviews conducted months later.
The series included five episodes that debuted weekly every Tuesday at 9PM ET/PT on UPN between the dates of May 17 and June 14, 2005, with reruns later appearing on MTV and VH1. Both Federline and Spears are credited as executive producers. The series was cancelled by UPN after the first and only season. The theme song was composed by Nick Thayer; he said it is the gig that meant the most to his heart because of his connection to the couple.
The show largely consists of home videos created by Spears and Federline, along with some added commentary, beginning with their courtship during the European leg of Spears' Onyx Hotel Tour in Spring 2004, and ending with their marriage that September. The series was released on DVD on September 27, 2005.
The episode pulled in an audience of about 3.7 million viewers between the ages of eighteen and forty-nine, which is nearly double what the time slot on UPN usually gathers.
This episode only netted an audience of 3 million, which is a significant decrease compared to the premiere. However, it was still an increased share compared to what UPN usually earns.
In a continuing trend, this episode pulled in an even smaller audience than the previous, with 2.5 million viewers, although it did increase in the key demographics of the Women 12-34 and Women 18-34. According to a UPN press release this episode increased their ratings when compared to the previous year. 
For the first time, this episode showed an improvement in ratings compared to the previous with 3 million viewers.
At the end of this episode was the world premiere of the music video for Spears' single "Someday (I Will Understand)".
The episode was only able to gather an audience of about 2.1 million.
One song on the album, "Mona Lisa", was previously previewed on the LA radio station KIISFM on 31 December 2004. The cut was a "demo" and gave fans hope of a new studio album that was supposed to be released later on that year. Spears titled the project "The Original Doll." The concept was dropped and the song was nearly completely re-recorded and lyrics were changed. Also, it has a 3/5 rating on iTunes.
"Over to You Now" was also unreleased from the In the Zone sessions in 2004.
"Someday (I Will Understand)" is a completely new recording, penned by Spears herself. The song was released as a CD single in Europe with various remixes of the song. The Extended Play single was released in Japan and contained the same songs as the "Chaotic" DVD and a remix of the lead song. A music video was shown on the series and released on DVD.
| Year | Show | Award | Result |
|---|---|---|---|
| 2005 | Teen Choice Awards | Choice TV Reality/Variety Star - Male (Kevin Federline) | nominated |
| Choice TV Show: Reality | |||