Two in a Million

"Two in a Million" is described as "a song about falling in love, having somebody to comfort you, and someone to be there for you no matter what." The song sees Jo O'Meara taking sole lead vocals for the first time. The album version of "Two in a Million" and the Boyfriends & Birthdays version (so named as it was the theme song of their BBC TV movie) are almost exactly the same, except the Boyfriends & Birthdays version has slightly more robust instrumentation, taking on a more orchestral and R&B approach, and pauses the music during the last line of each verse right before the chorus. The latter is included on the North American version of 7. Moreover, the demo version of the song, as heard on Miami 7, includes loud pop horns in the arrangement, which were removed for album release and replaced with a more subtle French horn arrangement alongside the live string orchestration in the Boyfriends & Birthdays version.

The single includes an exclusive B-side, "We Can Work it Out", which was performed during episode eight of Miami 7, "Alien Hunter". The track is a bubblegum-pop song with distinctively high melodies, and was again co-written by Mike Rose and Nick Foster, who wrote "You're My Number One". The UK release of the single includes the Miami 7 version of "You're My Number One", while the Australian release replaces this with the Jason Nevins remix of "S Club Party". The US release opts for a completely different B-side, containing an exclusive club mix of "Two in a Million" by Mark Penchotti, which has never been released elsewhere.

The music video was shot in Los Angeles, California[1] and sees the group all together in a house getting ready for a party. The video has a "black and white" theme to it, in that, in the beginning, the group are dressed in white clothes, and surrounded by white walls and furniture. They then sing together on a sofa. The group are seen to be getting ready for a party; the boys are shaving in the bathroom and the girls are trying on clothes in the bedroom. The group then move outside, where they continue performing beside a swimming pool. The colours change to black; they wear black clothes and there is dark lighting. People soon join them and the group sing and dance until the end of the video. The video has gained over one million views on YouTube as of 11 September 2014. The band's record company Universal Music Group added the video to the track on to their YouTube channel on 11 October 2008, prompting it to be one of the week's most viewed videos with over 140,000 views in under 48 hours.