Spotify has finally revealed a Windows Phone 7 app on Monday after a year of promise at the Windows Phone 7 AT&T launch event in New York City. 

The new Windows Phone app is free to download but like the iPhone and iPad app, will require a Spotify Premium account, priced at £9.99 a month to work.

The new app will let you see What's new, individual tracks, and all the usual Spotify features. The app is also going to offer background music support so you'll be able to listen to your favourite tracks while doing other things. 

“Spotify is a great example of software innovation emanating from Sweden and Europe”, says Steve Ballmer, CEO of Microsoft when the two announced the app for the first time in 2010. “We’re very glad to work in collaboration with Spotify to deliver a high quality, outstanding consumer experience on the Windows platform with Windows 7 and Windows Phone”.

The app is expected to be in the Marketplace around the world later today. 

Spotify is available in UK, US, Sweden, Norway, Finland, the Netherlands, France, and Spain.

UPDATE: We've now reviewed it - APP OF THE DAY: Spotify review (Windows Phone 7)