The huge influx of users visiting the Illegal Art website at once to download the album caused the servers to briefly crash. No release date had been announced up that point, and news of the album's sudden release quickly spread.
On November 15, 2010, Illegal Art made All Day available for download through their website in two options: one seamless 71-minute MP3 file, and as 12 separate tracks. He also revealed it would be his longest and most complex album to date. Girl Talk first shared details of his fifth studio album in a Pitchfork interview, where he revealed some of the sampled artists on the record and described it as 'something that's really complicated and has material that jumps around as far as possible in genre and style but, when you ultimately listen to it, it sounds like one cohesive piece of music. The album was later used as the soundtrack to the 2011 long music video Girl Walk//All Day, directed by Jacob Krupnick. The album received generally positive reviews from critics, scoring 79/100 on review aggregate website Metacritic. Containing 373 different samples, All Day is Girl Talk's longest release to date, clocking in at exactly 71 minutes.
Illegal Art released the album digitally for free through their website on November 15, 2010. All Day is the fifth studio album by American mashup musician Girl Talk.