The Facebook music application combines Last.fm's intuitive data capabilities with Spotify's catalogue of over 18 million songs to compile playlists based on the lineups at the UK's major summer festivals.
Users select three artists from a list of festival acts and the Kopparberg Festival Player will generate a bespoke Spotify playlist based on their choices. Playlists will appear on the Kopparberg UK Facebook page.
Other features of the music player include the option to share playlists with friends, and the opportunity to win tickets to UK festivals, including Field Day and Secret Garden Party.
Chris Wistow, commercial director at CBS Interactive Music Group, Last.fm, said: "We are really excited that Last.fm and Spotify have come together to create this fantastic app, it really highlights the synergy between the two services and the benefit this can have for music lovers."
Spotify's UK sales director Adam Williams added: "This campaign will help UK festival-goers to plan the bands they want to watch over the summer, allow them to share their suggestions with friends and to relive the experience through a Spotify playlist afterwards.
"We love to see campaigns like this that use our vast catalogue to capture the imagination of music fans."
Leading integrated media planning and buying agency Arena Media devised, generated and shaped the three-way partnership.
Kopparberg Head of Marketing, Rob Calder, said: "Kopparberg is proud to bring this innovative app to festival and music lovers - using Spotify's fantastic content and Last.fm's music discovery service means this is a totally unique app.
"The partnership elevates our continued support of new music and festivals allowing us to shine a spotlight on the talent of 2012 and give something back to our 110,000 Facebook fans."
The Kopparberg Festival Player, which marks the first collaboration between Spotify and Last.fm, is available to access via Kopparberg UK's Facebook page.