'Chemistry' is the platinum, hit packed, third studio album from Girls Aloud. Released in December 2005, the album features some of the band's most loved tracks including 'Biology', 'Whole Lotta History', 'Long Hot Summer' and 'See The Day'. To celebrate 20 years since the album, this special deluxe 3CD deluxe edition of the album contains 3 never before released tracks, including 'Naked In The Shower', 'You Go Too Fast (Demo)' and 'Singapore (Definitive Version)' - a brand new mix of a track loved by fans which originally appeared on a bonus disc for 'The Sound of Girls Aloud'. The unreleased tracks feature alongside rarities, unreleased demos and exclusive remixes.