In Brazil, we have a few.
But, in general, they're not an original beer, really created by some musician, but more a marketing thing.
They only contract a micro brewery to develop a recipe for then, or even use a previously existent beer and re-brand it with their names.
Examples are: Raimundos, Sepultura (which is a brazilian hardcore band well-known around the world) and Paralamas do Sucesso, bands which have a beer with their names produced by Bamberg Brewery, a microbrewery of São Paulo state dedicated exclusively to german styles.
The former 2 being merely a re-brand of Bamberg's flagship beers.
Velhas Virgens is a rock band from São Paulo which have their own brand too, and more than one beer, and I think someone inside the band homebrew.
Nowadays they produce in association with Invicta brewery, and I guess they have some contribution for them in the products development, although, of all those "rock band beers", they seem to be the most genuine/authentic initiative.
The way I see this thing on the craft beer scene is: people trying to take advantage of this trending market and make money out of it.
It's a pure marketing thing.
It's like you being a famous person and associating your name with some product, whatever it is, just because you know people will buy it only because of your image/name, and not because of what is really inside of it.
Particularly, I think this is pure opportunism.
beer.stackexchange.com/users/4338/Edson Marquezani Filho
If you want a look at a large variety of the band beers available this is a great site where you can buy them: Icon Beverages .
beer.stackexchange.com/users/5078/Jamie Eltringham
In Russia we have ARIA (АРИЯ) heavy metal band branded beer, made by Faxe.
Marketing way of Faxe.
As presentation of this event the band played a concert right at the Faxe brewery.
beer.stackexchange.com/users/5178/Валерий
In South Africa (where I am from) the band FokofPolisiekar had two beers.
In other countries: Queen has a Bohemian Pilsner.
Loosely related: Playboy also has their own beer.
Not a band, I know.
beer.stackexchange.com/users/984/Atron Seige
In Denver CO, Trve Brewing collaborates with a variety of metal bands for some if their beers.
There's also Black Sky and Black Shirt Brewing.
Then there's the E40 malt liquor, but I forget who brews it.
beer.stackexchange.com/users/27/object88
In Texas, Real Ale brewed Iron Swan Ale for The Sword.
They followed that up with another Sword branded beer, Ghost Eye.
beer.stackexchange.com/users/5187/mrshl
Hell, yes ! (source: acdc-beverage.com )
I have never drunk it though :) Update.
German rock band
" Die toten
Hosen " ("The dead pants", means "deadly boring")
has recently presented its own beer brewed in collaboration with a local brewery -
"Hosen Hell" (don't be confused with "hell", it's German for "pale lager beer", so the skull is from the band's logo not from hell.
See also note below)
In Russia, there is "Leningrad band" beer named after Russian " Leningrad " band.
Note:
Same applies to " Fucking Hell ".
Fucking is a village in Austria, Hell is pale beer.
But the name is obviously an intended pun.
beer.stackexchange.com/users/4742/Altbier is not Old Beer
Does your country have any band or music based special crafted beers?In Finland I can get Mötorhead, Kiss, Iron Maiden and Finnish bands like Amorphis and soon Diablo's Corium Black titled beer.  I was wondering that if I could get information that different countries have band or music related beers I could order some online for educational purposes.
Which band beers exist in your country?
beer.stackexchange.com
<specialty-beers>
beer.stackexchange.com/questions/4816
beer.stackexchange.com/users/5050/Pole
Band beers can be found in some countries. In Brazil, there is Raimundos Sepultura and Paralamas do Sucesso, as well as Velhas Virgens. In Russia, there ARIA beer made by Faxe. In South Africa, FokoPolisiekar has two beers and Queen has a Bohemian Pilsner sold around the world. In the US, Trve Brewing produces brands for a variety of bands and, in Texas, there is Iron Swan Ale for The Sword. Several Brazilian bands have beers produced by Bamberg Brewery, and Velhas Virgens produces a homebrew beer. Russia has an ARIA-brand beer, South Africa has two beers connected with FokofPolisiekar and Queen has a Bohemian Pilsner. Trve Brewing collaborates with several heavy metal bands, Real Ale brewed Iron Swan Ale for The Sword and ACDC has a beer.
Several Brazilian bands have beers produced by Bamberg Brewery, and Velhas Virgens produces a homebrew beer. Russia has an ARIA-brand beer, South Africa has two beers connected with FokofPolisiekar and Queen has a Bohemian Pilsner. Trve Brewing collaborates with several heavy metal bands, Real Ale brewed Iron Swan Ale for The Sword and ACDC has a beer.