Karen O premiered the first track off of her debut solo album, releasing the promotional video for 'Rapt'.

'Rapt' is off of Crush Songs, which is scheduled for a September 9 relase through Julian Casablancas' Cult Records. A vinyl edition, featuring personal drawings and handwritten lyrics by Karen O, will be available pre-release.

On her own website, Karen O left a message about the album: "When I was 27 I crushed a lot. I wasn't sure I'd ever fall in love again. These songs were written and recorded in private around this time. They are the soundtrack to what was an ever continuing love crusade. I hope they keep you company on yours."

Crush Songs follows the Yeah Yeah Yeah's last album, 2013's Mosquito. Karen O was also recently nominated for an Academy Award for her contribution to the film Her, 'The Moon Song'.

Watch the video for 'Rapt' below.