Released on 9 September 2021 via EMI, Universal and Capitol Records, "Angel Baby" was Sivan's first solo material since "Rager Teenager!"

[3] Sivan first announced the single on 27 August 2021 through social media posts, stating "surprise gushy juicy doting adoring power bottom gay ballad 'Angel Baby' out sept 10".

In the chorus he confesses that he wants to "stay in this moment forever" because he is "afraid living couldn't get any better", and that his lover has sacrificed a lot to be with him and has "gave up heaven so we could be together, declaring him his "angel baby".

[11] A visualiser featuring Sivan dancing around shirtless, wearing large angel wings and looking into the camera was released to accompany the song on 9 September 2021 and was directed by Lucas Chemotti.

[12] In some countries, such as United Arab Emirates and Saudi Arabia, the video is blocked due to its LGBTQ+ inclusion; a geo-restricted "tunnel version" was released instead.