"Bulletproof" is a song by English synthpop duo La Roux from their eponymous debut album, La Roux (2009). Written and produced by members Elly Jackson and Ben Langmaid, the song was released digitally in the United Kingdom on 21 June 2009 and physically the following day as the album's third single. "Bulletproof" was met with both critical and commercial success, debuting at number one on the UK Singles Chart. It was also a sleeper hit in the United States, where it peaked at number eight on the Billboard Hot 100 in June 2010, following televised performances of the song on The Ellen DeGeneres Show and Last Call with Carson Daly. The single has sold 2,324,000 downloads in the US as of September 2012.
"Bulletproof" received positive reviews from music critics. Digital Spy music editor Nick Levine gave the song five stars and described it as "a bright, bouncy slice of Yazoo-ish electropop with a chorus every bit as immediate as 'In For The Kill'", adding that "Jackson's vocals are less shrill this time around, but she comes off just as formidable, informing a useless sod who's messed her about that she won't be letting him do it again." Fraser McAlpine of the BBC Chart Blog, who also awarded the song five stars, stated that "the one sentence that crops up most often goes something like this: "...yes, 'Bulletproof' is brilliant, but...", hinting that this might be a song which possesses magical powers of persuasion." He went on to give five points on why the song is good: marvellous verses, marvellous chorus, the music serves the song brilliantly, less shrill to the singing, and the vocoder breakdown. "Bulletproof" was listed at number twenty-five on Rolling Stone's list of The 25 Best Songs of 2009.
Directed by The Holograms@UFO and Production Design by Alun Davies, the video starts with various retro patterns and abstract geometric designs in one scene. Then the camera shows Jackson sitting in a chair in a bright setting with her eyes closed. Then the song starts and Jackson leaves the chair and the camera pans to show random designs of La Roux which are shown behind her. She continues to walk, while singing the song itself. At the bridge of the song she stops and then the song starts to build to the chorus and she starts walking again, while 3D shapes (including polyhedra) are bouncing around her. The video ends with Jackson sitting back in dark setting with her eyes open. During the video, there is a variation of Jackson in the setting of bright and dark colours. Throughout the video Jackson is styled in high fashion clothes by House of Holland and others where references to Piet Mondrian's lozenge works can be seen.