NOW That's What I Call Music! Vol. 40 features 16 current major chart hits from today's hottest artists, including Britney Spears, Rihanna, Christina Aguilera, Foster The People, David Guetta featuring Usher, and more, plus four up-and-coming "NOW What's Next" New Music Preview tracks.

The Deluxe Edition adds a bonus disc with 16 more smash hits showcasing many of the top artists featured in the NOW series to date, including Katy Perry, The Black Eyed Peas, P!nk, Lady Gaga, and more.

The "NOW What's Next" bonus track program featured on each numeric NOW release continues to preview hot new artists with tomorrow's biggest hits. NOW 40 showcases up and coming tracks from Trevor Hall, Neon Hitch, Lil Playy Featuring Matthew Koma, and V V Brown Featuring Chiddy.

NOW That's What I Call Music! Vol. 40 [CD; digital]
1. Christina Aguilera Moves Like Jagger
2. Britney Spears I Wanna Go
3. David Guetta featuring Usher Without You
4. Cobra Starship featuring Sabi You Make Me Feel…
5. Alexandra Stan Mr. Saxobeat
6. Dev In The Dark
7. Foster The People Pumped Up Kicks
8. Rihanna Cheers (Drink To That)
9. Bad Meets Evil Featuring Bruno Mars Lighters
10. Jason Derulo It Girl
11. Lady Gaga You And I
12. Kelly Clarkson Mr. Know It All
13. Nickelback When We Stand Together
14. The Script Nothing
15. Lady Antebellum Just A Kiss
16. Demi Lovato Skyscraper
BONUS TRACKS: "NOW What's Next" New Music Preview
17. Trevor Hall Brand New Day
18. Neon Hitch Poisoned With Love
19. Lil Playy Featuring Matthew Koma Birthday Dress
20. V V Brown Featuring Chiddy Children