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Fresh off the heels of their lastest release "Don't You Worry Child", Swedish House Mafia has announced the track listing for their compilation album "Until Now." The compilation serves as the soundtrack to their last tour as Swedish House Mafia 'One Last Tour'. The 22-song compilation features some SHM favorites, like "Greyhound" and some remixes/mash-ups of "Save The World," as well as some favorites of SHM.

The album is available for pre-order September 25th, and will be released in the United States on October 22nd. 

"Until Now" track list:

1. Swedish House Mafia – Greyhound
2. Hard Rock Sofa & Swanky Tunes – Here We Go
3. Ivan Gough & Feenixpawl feat. Georgi Kay – In My Mind (Axwell Remix)
4. Sebastian Ingrosso & Alesso feat. Ryan Tedder – Calling (Lose My Mind)
5. Nari & Milani – Atom / Axwell, Ingrosso, Angello & Laidback Luke – Leave The World Behind
6. Swedish House Mafia vs. Knife Party – Antidote
7. Dirty South & Those Usual Suspects feat. Erik Hecht – Walking Alone w/Swedish House Mafia vs. Tinie Tempah – Miami 2 Ibiza
8. Michael Calfan – Resurrection (Axwell mix) w/ Coldplay – Paradise
9. Miike Snow – The Wave (Thomas Gold remix)
10. Steve Aoki feat. Wynter Gordon – Ladi Dadi (Tommy Trash remix) w/Thomas Gold – Sing 2 Me w/ Red Carpet – Alright
11. Pendulum – The Island (Steve Angello, AN21 & Max Vangeli remix)
12. Steve Angello & Third Party – Lights
13. Alesso – Raise Your Head w/ Sandro Silva & Quintino – Epic
14. Hardwell – Three Triangles w/Arty, Matisse & Sadko – Trio/Adrian Lux – Teenage Crime
15. Sebastian Ingrosso & Tommy Trash – Reload
16. Usher – Euphoria (Swedish House Mafia Extended Dub)
17. Swedish House Mafia feat. John Martin – Don’t You Worry Child
18. M-3ox feat. Heidrun – Beating Of My Heart (Matisse & Sadko Remix) w/The Temper Trap – Sweet Disposition
19. Coldplay vs. Swedish House Mafia – Every Teardrop Is A Waterfall
20. Florence & The Machine – You Got The Love (Mark Knight remix)/Swedish House Mafia – One
21. Axwell – Heart Is King / Swedish House Mafia – Save The World (Knife Party remix)
22. Swedish House Mafia – Save The World w/ Ferry Corsten – Punk (Arty remix)

Swedish House Mafia will also be performing at the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena in Las Vegas September 21 and 22. Hear what the guys had to say about the festival: