It's MTV's second annual Musical March Madness! MTV News took the 64 biggest names in rock, split them up into four regions, assigned them seeds and puts them up against one another in a single-elimination series of match-ups in a winner-take-all contest. We're leaving it to you to decide an actual champ in this field of 64, so over the next few weeks, fan voting will determine who will emerge as this year's champion. It's all about the fans, and the artist with the most passionate fan base will score the awesome Musical March Madness trophy!

The Sweet 16 has created some truly awesome head-to-head pairings, including the second one in the West region. Which one of these two titans will move on and which one will go home? It should be a slobberknocker, so be sure to check it out.

Voting for all Sweet 16 match-ups will close on Tuesday, March 29 at midnight. As always, you can follow all the voting here.

(2) Blink-182 vs. (3) Green Day

In what is possibly the biggest of all the Sweet 16 match-ups, Green Day take an incredible amount of momentum into their confrontation with Blink-182. Billie Joe Armstrong and the boys got past Adam Lambert and then engaged in a knock-down, drag-out battle with former collaborators U2 to get to this point. Meanwhile, Blink-182 topped All Time Low and the Red Hot Chili Peppers on their way to the Sweet 16, both of whom proved to be able adversaries. Which icons of California punk will find themselves in the Elite Eight? It's up to you!

Check out Dick Bagwell and Vincent Twice previewing the Sweet 16!

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Check out the Musical March Madness bracket and be take a look at the hoops-centric photos of some of the tournament's biggest bands.