User blog comment:DancePowderer/Soundtrack Entrances/@comment-3119203-20121130063435

Pell - Ain't No Grave (Johnny Cash)

Alright, now let's get serious.

Luffy - In One Ear (Cage the Elephant)/You're Gonna Go Far Kid (The Offspring)

World Government - War Pigs (Black Sabbath)

Enel - Twilight of the Thunder God (Amon Amarth)

Sanji - Hit That (The Offspring)/Sharp Dressed Man (ZZ Top)

Shiliew - Raining Blood (Slayer)

Ace - Highway to Hell (AC/DC)/Don't Fear the Reaper (Blue Oyster Cult)

Chopper - Dr. Feelgood (Motley Crue)

Whitebeard - Indestructible (Disturbed)

Garp - Badass (Saliva)

Dalton - Becoming the Bull (Atreyu)

Moriah - Boulevard of Broken Dreams (Green Day)

Crocodile - Enter Sandman (Metallica) (This one is my personal favorite)

Law - Headstrong (Trapt)

Brook - Lonely Day (System of a Down)

Blackbeard - New Moon Rising (Wolfmother)

Doflamingo - Puppet (Thousand Foot Krutch)

And now some because I think they would be good for it....

Kizaru - F.I.G.H.T. (Unwritten Law)

Zoro - Blow Me Away (Breaking Benjamin)

Akainu - No More Sorrow (Linkin Park)

Most of these are random, a "this feels right" kinda thing. I I think of more, I'll add them.