Brothers is the sixth studio album by American rock duo The Black Keys, released in 2010 via Nonesuch Records.
The font used on the cover is probably Cooper Black, a rounded and bulbous typeface designed by Oswald Bruce Cooper. The typeface is a commercial one and more details about it can be found here.
Download Cooper Black Font
The Cooper Black font identified above is not available for free, please follow the link above and purchase the font. Meanwhile, you can take a look at our collection of fonts for cars, pop music and apparel as well as round-ups of new & fresh fonts around the web.