High Quality Content by WIKIPEDIA articles! Keeps Gettin` Better: A Decade of Hits is the first greatest hits album from American recording artist Christina Aguilera. The album was released on November 7, 2008 with the confirmation that a lead single named "Keeps Gettin` Better was released in September 9th 2008. The single entered the top 10 in the Billboard Hot 100 chart and marked the start of the promotional work for the compilation album. The compilation contains tracks from all of the singer`s studio albums released up to 2008: Christina Aguilera (1999), Mi Reflejo (2000), Stripped (2002) and Back to Basics (2006). The album also featured four new additions of which two were revisions of previous singles from Aguilera and two original songs being that of the lead single and a new addition named "Dynamite". New content featured was recorded and produced with Linda Perry. During the production of the compilation album Aguilera stated that the Superhero theme was a recurring one for the new material. She also stated that the new material was a preview of what was to come with a future studio album, the lead single "Keeps Gettin` Better" featured electropop and dance-pop themes which was recurring in her following studio album release, Bionic (2010).