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Second single from the "Chemistry" album, released in late 2005, it peaked at #4 in the UK singles chart. Biology is one of their most well known songs and one of their most successful singles.

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Why don't you fool me, feed me
Say you need me without wicked games
Come on and hold me, hug me
Say you love me and not my dirty brain

Girls Aloud - Biology Lyrics


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  • ya their best song, for sure
  • Their best song, easily
  • as Cheryl would say: it's pop at its best. [5]
  • it cool this video***********
  • You can't mistake my biology! <3 [9]
  • You can't mistake my biology! <3 [8]
  • I think this song is the best song ever of the Girls Aloud <3 <3 <3
  • pretty cool actually :-)
  • Driving track.

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