Under a Billion Suns is the seventh studio album by American rock band Mudhoney, released in the United States in March 7th, 2006.

[10] The first few hundred copies pre-ordered from Sub Pop were autographed by the band, and came with a bonus CD featuring demos and remixes.

Then early July they recorded the last four tracks at Tucker Martine's Flora Avenue Studio in Seattle.

[7] The album includes backing vocals from Christy McWilson and Amy Allison on "Let's Drop In" and "I Saw the Light".

Although songs like "On the Move," and "I Saw the Light" had been appearing in Mudhoney's live shows, Arm said the band wasn't particularly looking to fine-tune the material before it hit the studio.