Today, music fans are getting loud and turning it up to 11 in an homage to Spinal Tap guitarist Nigel Tufnel's awe-inspiring line in the classic 1984 mockumentary "This Is Spinal Tap." It's 11/11/11, or "Nigel Tufnel Day," and here at Billboard we're celebrating too, with a superlative list of music's loudest mouths, songs, moments, bands, and more. From the Loudest Rapper Alive to the Most Regrettably Loud Album, here are 11 things in music that crank the volume far beyond that wimpy 10.

More 11/11/11: Billboard's Video Chat With Spinal Tap | 11 No. 11s

Loudest Song Shorter Than Two Seconds

Grindcore, a particularly grating subgenre of hardcore punk, is often characterized by loud, brief songs. "You Suffer," a 1987 song from genre trailblazers Napalm Death, holds the Guinness World Record for shortest song ever recorded, at 1.316 seconds. Appropriately enough, it was chosen as the band's debut single, released as a 7" on Earache Records. [CP]

Loudest Mouths In Rock

Oasis bandmates Liam and Noel Gallagher have been publicly feuding since the group's first American tour in 1994 (and that's not including the bros' personal squabbles before Oasis). While younger brother Liam handled vocal duties, older brother Noel wrote the band's music and generally controlled their creative direction. But egos and grudges got in the way quickly, leading to public fights (including a recorded argument on a 1995 bootleg single and Liam's last minute withdrawal from Oasis' 1996 "MTV Unplugged" performance), personal ridicule, and constant conflict that's never let up since the band's start. Even after Noel quit the band in 2009 to start his own solo project, Noel Gallagher's High Flying Birds, the siblings have hardly backed down, and it seems we can never go a few months without another outburst. [RC]

Loudest Career Transition by an Easy Listening Singer

Norah Jones isn't typically known for keeping it nice and easy. Her smooth and soft Jazz albums are typically rocked at Starbucks rather than a dive club. However, Norah has to get that aggression out somehow, and she does with rock band El Madmo. Donned in a blonde short wig and raccoon makeup, Jones fully transforms into a rock star in this band. With their post punk inspired sound, it's quite not 0 to 11, but it's enough to raise some eyebrows down at the coffeehouse with songs like "Rock Yer Balls Off". [MD]

Loudest Rapper Alive

There's nothing quiet about DMX. When he speaks, it sounds like he's yelling. So when he's yelling, you definitely pay attention. When Complex did their ranking of Loudest Rappers Ever, DMX took the crown from other rambunctious rhymers like Lil Jon and Mystikal. That's a pretty deafening statement. [MD]

Most Regrettably Loud Album

There was possibly no louder album in 2010 then Sleigh Bells' "Treats". The power pop duo of Derek E. Miller and Alexis Krauss won over hearts, minds, and ears with their fuzzy cranked-up jams. But if they had to do it all again, Miller told The Atlantic no way. "Our song 'Tell 'Em' came on a friend's playlist once sandwiched between a few songs, and I jumped," Miller said. "It kind of annoyed me." Even though he enjoys the overall sound they achieve, as far as the volume goes, Miller said "I'm done blowing things out. Not a single thing is in the red, and I couldn't be more excited about it." [MD]

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