Leona Lewis' new single "Collide" out in September

The ‘Bleeding Love’ singer took to Twitter yesterday to reveal that the tune would be played on BBC Radio One today. It’s official release date is September 4.
“So excited to let u know to tune into Scott Mills show on Radio One tomorrow for the worldwide exclusive play of my summer single ‘Collide’,” tweeted the 2006 X Factor winner.
Her third album is expected to hit the shelves in late 2011.