"Bionic" is a song recorded by American recording artist Christina Aguilera, taken from her sixth studio album of the same name (2010). The song was written by Aguilera, Kalenna Harper, John Hill and Switch, while production was done by the latter two. "Bionic" is an electronic number and has garnered comparisons to works by artists including Santigold and Janet Jackson.

Aguilera performed "Bionic" as an introduction to "Not Myself Tonight" on a number of occasions, including the 2010 MTV Movie Awards, The Today Show and VH1 Storytellers. Upon the release of Bionic, the song peaked on the US Billboard Hot 100 at number 66, and on the Korean Gaon International Download Chart at number 23.

After the birth of her son, Aguilera stated in an interview with Ryan Seacrest that her forthcoming album would include a totally new aspect of herself as an artist, because of the pregnancy with her son. During an interview with People in 2008, Aguilera stated that she was going to start recording new material for her forthcoming album at her home in Beverly Hills. On the album, entitled Bionic, Aguilera was inspired by electronic and electronica music, which she heard a lot during her pregnancy.

Aguilera also commented about the album during an interview with Ryan Seacrest, "It's really a fun, fun record. Really futuristic. I was inspired by a lot of electronic music, electronic artists, and so you'll hear all those elements". She added, "[There are] different textures and things with my voice that I was really playing around with and having fun with on this record that I never even knew I could do, vocally". "Bionic" was recorded at three places: Dubsided recording studio in Los Angeles, California, Dreamland Studios and Mad Decent Mausoleum in Philadelphia. Aguilera's vocals were recorded at The Red Lips Room in Beverly Hills, California. The track was written by Aguilera, Kalenna Harper, John Hill and Switch. Hill and Switch also produced and provided musical instruments to "Bionic".

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