Nothing Personal is the third studio album by American rock band All Time Low. As early as May 2008, the band began writing for their third album, and by November revealed they would be recording in the winter. The band began pre-production in early January 2009 and started recording later in the month, which lasted until March. Half of the album's songs were produced by Matt Squire with Butch Walker, David Bendeth and S*A*M and Sluggo each producing a few songs. Tom Lord-Alge mixed the majority of the album. "Weightless" was made available for streaming in March, and released as a single in April. A support slot for Fall Out Boy and an appearance at the Bamboozle festival followed.

The band went on an Australian tour in June, which was followed by a music video for "Weightless" in July. Nothing Personal was released through Hopeless Records on July 7. On the same day, the band performed shows in three different cities in a 24-hour span. They then went on a US tour before performing on the main stage at the Warped Tour in July and August, followed by appearances at the Reading and Leeds Festivals. In September, a music video was released for "Damned If I Do Ya (Damned If I Don't)", and the track was released as a single. Between October and February 2010, the group went on tours of the US, UK and Australia. "Lost in Stereo" was released as a single in April; a music video followed in late August.

Nothing Personal sold 63,000 copies and reached number four on the Billboard 200, giving the band their biggest first week sales. The album went on to sell over 135,000 copies by September 2009. It reached number one on three Billboard charts: Alternative Albums, Independent Albums and Top Rock Albums. It also charted at various positions in Australia, Canada, Japan, the Netherlands, Sweden and the UK. The album has since been certified Gold by both the British Phonographic Industry (BPI) and Recording Industry Association of America (RIAA). As well, "Weightless" has been certified Gold by the RIAA. They re-recorded the album live in studio as It's Still Nothing Personal - A Ten Year Tribute in 2019.