The album opens with lead single "Call Back", a pop song about confessing one's feelings that incorporates heavy bass, lyrical piano and upbeat guitar riffs.

[4] On October 15, 2024, SM Entertainment announced that Minho would release his first studio album, Call Back, on November 4, stating that it would "prove the expansion of his musical spectrum".

[6] On October 23, Minho revealed the album's track list through a video uploaded to Shinee's social media accounts, including audio snippets of the songs "Fireworks" and "Because of You".

[1] A few days later, he launched a promotional website which displayed a video of Minho driving a car with songs from the album playing in the background.

[3] Minho hosted a live event to discuss the album on November 3, which was also broadcast through online platforms such as YouTube, TikTok and Weverse.