The track was written by Fadil El Ghoul, Rik Annema, and Cimo Fränkel, with R3hab serving as the producer.

"[5] On January 19, 2021, Wang confirmed that Tsai had completed recording the new single and mentioned, "It took a long time to choose the right song.

[12] "Stars Align" is primarily an electronic dance music track, featuring dynamic rhythms characteristic of R3hab's signature style.

The song is energetic and layered, with Tsai's distinctive enunciation and unique vocal tone seamlessly blending into the dance music genre.

Tsai shared her experience, saying, "I visited Morocco two years ago, and stepping into this place immediately reminded me of my North African travels!

"[15] The dance choreography in the MV combines elements of vogue and floorwork, featuring highly intricate movements.

[16] On December 1, 2021, "Stars Align" ranked 4th on YouTube Taiwan's list of the most viewed music videos of the year.