"Piece of Me" is a song by American singer Britney Spears from her fifth studio album, Blackout (2007). It was released on November 27, 2007, by Jive Records as the second single from the album, but was actually the last song recorded. It was written and produced by Swedish producers Bloodshy & Avant and Klas Åhlund as a response to the media scrutiny and sensationalism of the singer's private life, which they had witnessed firsthand after working with her over the years. The song, acting as the singer's manifesto, has biographical lyrics retelling Spears's mishaps. It can be classified as an electropop, dance-pop and EDM-pop song that features an "electro instrumental track" and runs through a down-tempo dance beat. Spears's voice is heavily synthesized and her pitch constantly shifts; backing vocals are provided by Bloodshy & Avant and Robyn.

"Gimme More" is a song by American singer Britney Spears from her fifth studio album, Blackout (2007). It was released on August 31, 2007, by Jive Records, as the lead single from the album. "Gimme More" was recorded in 2006 during Spears' second pregnancy and was one of the first solo productions by Danja. The song opens with an intro in which Spears utters the phrase, "It's Britney, bitch." Musically, "Gimme More" is a song with elements from dance-pop, electropop and EDM using breathy vocals. The track closes with a speak-sing outro by Danja.