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From there, Columbia went public and posted 1980s themed billboards and posters to promote the album and single, "Last Train Home". On June 1, 2021, Mayer finally confirmed that his new album was indeed called Sob Rock, and additionally gave the release date and cover. A site called went up around the same time, with a newsletter sign up and a copyright for "John Mayer Enterprises". They all described the sound of Sob Rock but never explicitly confirmed ties with Mayer releasing an album. A couple months before the album released or was even formally announced, posters appeared in various locations in cities around the world. In addition to Mayer himself creating a TikTok account, Columbia Records also pushed a marketing campaign revolving around a 1980s advertising aesthetic.
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It was also announced that the album was to be released on physical formats, adding different vinyl and cassette editions. Before that, clips of the track were released onto Mayer's TikTok account in late March 2021. Mayer released "Last Train Home" as a single on June 4, 2021. It was recorded between late 2017 and early 2021. However he later announced the delay of the record to July 16. Initially, Mayer claimed that the album was to be released in mid-April 2021. These singles ("New Light", "I Guess I Just Feel Like", and "Carry Me Away") had all been released in the time from mid-2018 to late 2019 and were not originally intended to be on an album. Mayer also decided that three of his previous singles were also going to be on the album when it released. Mayer said that the idea of this album was meant to "confuse the listeners" and "implant false memories." ` He also stated in an interview with Zane Lowe that the record was meant to be a shitpost, trying to go against everything he had released up to that point. Mayer's goal was to work on a 10-track album that paid homage to the songs he heard in his childhood growing up in the 80s. Mayer has stated that this album was mostly born out of the COVID-19 pandemic, with most of the songs on the album resulting from the time after March 2020 when touring was shut down for many artists.
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