Citizen King's song "Better Days" features the line "Crank it to eleven/blow another speaker".
Daniel Ekeroth demonstrates Swedish Death Metal guitar sound.
In the documentary film Moog, Yes keyboardist Rick Wakeman remarked that when the Moog synthesizer allowed keyboardists for the first time to fill a role equal to that of guitarists in bands, all the guitarists started looking for the knob that goes to eleven.
The German band "Die Ärzte" demonstrate this in their animated music video for the live-performed song "Elke". This sarcastic song about a fat fangirl called "Elke" starts out calm, but when the amplifier gets up to eleven, this song rocks hard and the animated over the top violence begins. The "11" even glows red ! Here (with English subtitles)
German Industrial Metal band KMFDM recently released WTF?!, an album featuring the song "Krank" which features the lyrics "Krank! Krank it to 11/Kein Mehrheit Für Die Mitleid 24/7"
Punk band "Templeton Pek" (yup, an A-Team reference) turn up their speakers Up to Eleven...visually. Barriers (at the end)
Rush fell victim to this trope with their 2002 album Vapor Trails. Coming out in the thick of the "loudness war" of the early 2000s, it was mastered so loud that most of the subtle details (including Alex Lifeson's acoustic guitar) were buried, distorted, or badly obscured. In February 2011, the band announced plans to remix the whole album.
"Sometimes I wish I was even more awesome than I already am.
What would my life be like if I turned this shit up to eleven (out of a possible five)?"
The Sacramento rock band Warp 11, whose songs are entirely about Star Trek, chose their name as a tribute both to Spinal Tap and to the Trek universe's ultimate speed limit of Warp 10.
Australian radio station 2JJJ once released a compilation album of great heavy metal tracks. It was titled "Twelve".
Mötley Crüe has a song outright titled "Louder Than Hell".
"Some like it loud"
"We like it loud, we like it loud, we like it LOUDER!"
"LOUDER THAN HELL!"
Deep Purple has been rated as the loudest Rock-band in the world, and that's not without a proper reason either. During all of their favorite songs, they tend to bring the volume up, just a bit... well, a lot, actually. "Average" songs, by their standards, are played loud. When they get to "Smoke On The Water", "Hell To Pay" or "Black Night" (or "[[Spell My Name with an S Black Knight". They're not sure themselves), or any of their Audience Participation songs, for that matter, the volume goes up. If you didn't already need earplugs, you'll need them when those songs come around, and you get no warning before the songs start!