'The Promise' is the only GA single you have heard?
OH DEAR, have you missed out if so!
You HAVE to listen to 'Call The Shots', 'The Loving Kind', 'Sound Of The Underground', 'Something Kinda Ooooh', 'Biology', 'Love Machine', 'Untouchable'
or basically their whole discography, especially their last two perfect albums!
Duffy and Natasha Bedingfield are also amazing UK artists