XO is the fourth studio album by American singer-songwriter Elliott Smith and his first solo release on a major label. The album marks a significant evolution in Smith’s sound, incorporating full-band arrangements, orchestral textures, and layered production while retaining his signature introspective lyrics and delicate acoustic work.

"The budget might have gone up, but Smith's masterful way with an understated melody and melancholic lyric remained firmly intact", calling XO "perhaps the greatest long-player Smith released; if not, it's certainly the equal of the preceding Either/Or. - BBC Music