What Was I Thinking?

The debut single by Crystal Barker, "What Was I Thinking?" was released on March 23rd, 2009 and debuted at #26 on March 29th, due to a lack of promotion. However, the following week, the song climbed to #23, and on the singles' 3rd week in the charts, it reached its' peak of #19. The track sold just under 75,000, which was not a promising start to the singers' UK career. It is her worst performing single to date, being her only single to miss the top 10, and one of only two tracks to miss the top 5 (the other being 'Wind Me Up' which charted at #6). It is also her only single to not achieve platinum certification.