The album was preceded by four singles: "Wait a Minute My Girl", "Dagen Før" (featuring Stine Bramsen), "Shotgun Blues", and "Becoming".

The band had a tour in North American planned for April and May 2020 with the opening acts Clutch and The Picturebooks which had to be canceled due to the COVID-19 pandemic.

[2] In an interview with "Whiplash", the KLOS radio show hosted by Full Metal Jackie, lead vocalist Michael Poulsen stated: "I know for sure that what I'm writing right now is not really similar.

[4] Rob Caggiano recorded the lead guitars at Sonic Debris Studio in West Babylon, New York.

[4] On 2 June 2021, the songs "Wait a Minute My Girl" and "Dagen Før" (featuring Alphabeat's Stine Bramsen) debuted as the first two of four singles before the album's 3 December release.

[5] "Wait a Minute My Girl" became the band's ninth number one single on the Billboard Mainstream Rock chart.

On the same day, the band confirmed the release of their eighth studio album Servant of the Mind for 3 December 2021.

[15] The opener "Temple of Ekur" has ancient themes similar to one of the band's previous songs, "The Gates of Babylon" off Seal the Deal & Let's Boogie (2016).

"[15] "The Passenger" utilizes "punky '80s thrash" in the verses and "pop-metal" in the refrain,[17] "Step Into Light" contains "twangy guitar[s], "post-punk menace",[18] and elements of psychedelia.

considered the album to be a "beefed-up career high" and was positive towards the guitar work from Michael Poulsen and Rob Caggiano.

[19] Chad Bowar of Metal Injection stated that "Servant of the Mind has a lot of memorable songs, a couple of filler tracks, and follows in the path of Rewind, Replay, Rebound and 2016's Seal the Deal & Let's Boogie with catchy hard rock singles augmented by some metal moments.