Bittersweet is the first studio album by Life On Planet 9, the pseudonym used by American hard rock band Lo-Pro when releasing music of a more experimental nature.

The album's origins trace back as far as 2007, when Lo-Pro participated in an acoustic tour with Staind frontman Aaron Lewis.

Lo-Pro formed after members Pete Murray and Neil Godfrey started making music together after the breakup of their prior band, Ultraspank.

[10] However, at this point, the band had been out of the public eye for a number of years, and felt their comeback album should be closer to their original sound.

[1] While its sound moved into ambient directions as well later in recording,[15] the electronic touches were even present in the band's early 2007 b-side material "This is Not Goodbye" and "Consider This".

[9] The album features emotional downtempo elements with acoustic guitars with electronic beats, ambient keyboard textures and dreamy vocals.

Melodic praised it as a "wonderful album that grows with every spin", comparing it favorably to "...ambient, dreamy, epic and acoustic based songs that breathes the prog of Camel, the melancholy of Vast and the electronic rock of Filter".