Biology

1	https://www.songsterr.com/a/wsa/girls-aloud-biology-chords-s188961	Chords
2	https://www.azchords.com/g/girlsaloud-tabs-18383/biology-tabs-378014.html	Chords
3	https://www.yourchords.com/39388/Girls-Aloud/Biology-Chords/	Chords
4	https://www.ultimate-tabs.com/girls-aloud/biology-chords	Chords
5	https://www.tabondant.com/eng/tabs/girls-aloud/biology#101264	Chords
6	https://www.guitartabs.cc/tabs/g/girls_aloud/biology_crd.html	Chords
7	https://www.e-chords.com/chords/girls-aloud/biology	Chords
8	https://tabs.ultimate-guitar.com/tab/girls-aloud/biology-chords-411970	Chords

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