# "You're My Number One" – 3:27
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# "Two in a Million" – 3:36
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# "Two in a Million" (Boyfriends & Birthdays version) – 3:36 from S Club
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# "You're My Number One" (Miami 7 version) – 3:27 from S Club
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 a slightly more robust instrumentation, taking on a more orchestral and R'n'B approach, and pauses the music during the last line of each verse right before the chorus.
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It made its debut at number 5 in the run up to Christmas selling almost 100,000 and peaked at number 2 on the UK Singles Chart the following year.
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