This song, which tells of a suffocating, unsalvageable relationship, was produced by Guy Sigsworth. The English electronica producer has also worked with Seal ("Crazy
"), Madonna ("What It Feels Like For a Girl
"), Alanis Morissette ("Moratorium
") and Björk ("It's Oh So Quiet
"). He also co-wrote and produced "My Baby" on Circus
and produced Spears' previous hit singles "Everytime
" and "Someday "I Will Understand."