"I Belong to Me" is a song by American recording artist Jessica Simpson from her fifth studio album, A Public Affair.

[5] Billboard wrote that "Simple R&B-lite production allows Simpson's lovely vocal to hold the reins, making for a song (written by the incomparable Diane Warren) that is a thematic bull's-eye for her female teen target [...] let's see if programmers make this release more of the public affair it deserves to be".

[5] Sal Cinquemani of Slant Magazine wrote, "I Belong To Me," an exclusive Walmart bonus track, will instead be the follow-up, a coup for the retail giant and a big fuck-you to competitors and unknowing fans who pick up the album anywhere else.

On Jessica's big post-divorce statement, she still sounds like a prissy kid, braying, "I complete myself" in "I Belong to Me," her answer to Nick Lachey's "What's Left of Me.

[5] It was believed that the song had hit potential,[3] and consequently Simpson's record label added it to subsequent versions of the album.

", "I Belong to Me", "I Don't Want to Care", "If You Were Mine", "The Lover in Me" and "You Spin Me Round (Like a Record)", and vote for which song would become the second single.

[9] In the United States, "I Belong to Me" was made available for airplay at mainstream contemporary hit radio stations on September 26.

Simpson said that the shoot was "a very emotional time" for her, and that she thought viewers of the video would "experience what I've been experiencing for the past year".