Keeps Gettin' Better

"Keeps Gettin' Better" is a song by American recording artist Christina Aguilera, taken from her first greatest hits album Keeps Gettin' Better: A Decade of Hits. It was released on September 9, 2008 by RCA Records as the only single from the album. The song was written and produced by Linda Perry, with additional songwriting from Aguilera. After giving birth to her son Max, she looked to "come up with something new and fresh", developing a "futuristic" era of her career. "Keeps Gettin' Better" is an electropop song, and was inspired by the likes of Andy Warhol and Goldfrapp. Its lyrics portray Aguilera as a superhero.

Upon its release, "Keeps Gettin' Better" received generally mixed reviews from music critics. At a time when dance music was becoming increasingly prominent, the song was criticized for a lack of originality, but was deemed "catchy" and a welcome change from Aguilera's fifth studio album Back to Basics (2006). It became Aguilera's second-highest debut on the US Billboard Hot 100, after "Ain't No Other Man" (2006). The song topped the US Hot Dance Club Play chart. Elsewhere, it peaked at number four in Canada, while charting inside the top 20 in Austria, Germany, Ireland, Italy, Japan, Slovakia and the United Kingdom.

The accompanying music video, directed by Peter Berg, features Aguilera in an editing room, producing the music video on a green screen. Using the equipment there, she creates several characters including, a Blonde 1960's inspired hippie character, another based on Catwoman and another futuristic blue-haired version of herself. Aguilera debuted the song through a live performance at the 2008 MTV Video Music Awards. Wearing a catsuit, she sang a remixed version of her single "Genie in a Bottle", before performing "Keeps Gettin' Better".