Singer IU and group Ulala Session will release new track "Anxious Mind" on June 30. The song carries the voice of the now-deceased member Lim Yoon Taek.

"Anxious Mind" is the fifth song in Producer Choi Gap Won's project "The Lyrics." Although recorded in 2012, the song has delayed its release due to the death of Lim Yoon Taek.

On June 24, "The Lyrics" staff commented: "We didn't want the song and Lim Yoon Taek's passion for music to seem like it was a marketing ploy. We had to delay its release."

The song is composed by Kim Do Hoon, producer of Soyou and Junggigo's "Some," and PJ, who has made the first Japan Oricon #1 song as a Korean composer. The lyrics were written by Choi Gap Won.

Meanwhile, the project has incorporated skilled musicians like Wheesung, Soul Star, Youngji, Big Mama's Lee Ji Young, and Gummy since 2012.