Lyrics and composition
The majority of the lyrics and composition to TVXQ's songs are done by their staff. On occasion, the members of the group contribute to the writing of the lyrics and composition. On their second Korean album, Rising Sun, Micky, U-Know, and Xiah wrote the rap lyrics to "Love After Love". For the third Korean album, "O"-Jung.Ban.Hap., Micky wrote the English rap lyrics to "Phantom Hwanyeong" and Xiah wrote and composed "Nae Gyeote Sumsiur Su Ittdamyeon (White Lie)" (네 곁에 숨쉴 수 있다면). Their fourth Korean album, Mirotic, saw an increase in the members' participation: Hero wrote and composed Saranga Uljima (Don't Cry My Lover) (사랑아 울지마), Max wrote the Korean lyrics for "Love in the Ice", Micky wrote and composed Sarang Annyeong Sarang (Love Bye Love) (사랑 안녕 사랑), and Xiah wrote Noeur.. Baraboda (Picture of You) (노을..바라보다).
For their third Japanese album, T, Micky wrote "Kiss Shita Mama, Sayonara" (Kissしたまま、さよなら, lit. As We Kiss, Goodbye) and co-composed the song with Hero. Micky also wrote the lyrics for his solo, "My Girlfriend" for the second single in the Trick project, Runaway/My Girlfriend. Xiah composed his solo track, "Rainy Night", for the third single in the Trick project. Hero wrote and co-composed "Wasurenaide" (忘れないで, lit. Don't Forget) and Micky wrote and composed "Kiss the Baby Sky", both songs were included on their twenty-fifth single "Bolero/Kiss the Baby Sky/Wasurenaide", as the last two A-sides. The songs later appeared on their fourth Japanese album The Secret Code, along with the song, "9095", which was composed by Hero.