Written and produced by Dr. Luke along with Cathy Dennis and Steven Wolf, it was released on 24 September 2007 by Island Records as the lead single from the album, the first to feature Amelle Berrabah on all tracks.

The song was generally well received by music critics, who complimented its genre mixing production as well as its US pop influence.

In the 2009 edition of Guinness World Records, "About You Now" was listed as the "first track by a British pop act to top the singles chart solely on downloads".

[4] An acoustic version of the song appears as a bonus track on the group's sixth studio album Catfights and Spotlights (2008).

[6] Recorded at the Sarm West Studios in London, it was mixed by Kurt Read with further assistance from Aniela Gottwald.

He remarked that while "About You Now" lacked "the sauciness of a "Push the Button" or spiky attitude of "Hole in the Head", it makes up for it with robot voice effects, a pulsating electronic backbeat and a chorus so addictive that it should probably be taken away and labelled a class A drug".

Though he noted a lack of edge, blunted by the departure of former band member Mutya Buena, Webb went on declaring it "a short, sharp jolt of classic, perfect pop", giving it seven stars out of ten.

[8] By contrast, IndieLondon gave a mixed reception to the song, writing that "it taps into a breezier sound that's designed to fizz with synths, guitars and perky beats.

It debuted at number thirty five on the UK Singles Chart after the release of a remix package for legal download.

[12] A week later, a major boost in downloads, induced by the official release of the digital single, helped catapulting the song to the top of the British charts.

[12] "About You Now" saw similar success in Germany where it also peaked at number four on German Singles Chart, eventually becoming the Sugababes' third biggest hit there, again behind "Push the Button" and "Overload".

The music video for "About You Now" was directed by Marcus Adams and shot on 24 August 2007 at the Festival Hall in Waterloo in London, England.

[14] Although various pictures of the clip were leaked on the net the following days, it was not until 6 September the full video made its world premiere via internet.

Miranda Cosgrove’s cover of "About You Now" was promoted as the lead single from her debut extended play of the same name, on January 28, 2009.

The pictures of two girls acting like they are dating remind Miranda about her break up with her ex-boyfriend, wherein she mistakenly accused him of cheating on her.