In addition to Layden's unique music color and Chanyeol's emotional voice, Lee Ha-yi and Chang-mo will participate in the featuring, attracting the ears with musical synergies from four artists with different charms.

Bol4 Ahn Jiyoung, EXO Baekhyun. Two artists with unique tones met to create the warmest and most emotional duet this spring.

It digested the unique affectionate and lovely sensibility of the lyrics of "The Butterfly and the Cat" with a refreshing and soft tone.

It is the first new style duet by Bol4, with the jazz piano and string ensemble in the chorus creating a mysterious atmosphere, with the highlight of the middle of the song driven by Martian instruments.

It is an attractive song with a funky rhythm base and electric guitar leading the mood of the song as soon as you listen to the intro, and the witty lyrics of the chorus and the points of the melody line are catchy.

It is a song about the feelings of youth just becoming an adult, and it depicts the worries of people in their 20s who are confused by complex social concepts and laws such as human relations, law, flexibility, and money in a fence called "Society."

In the song, people and society were compared to cars and roads, respectively, and many rules to live by were compared to traffic lights.

It is a song that compares "beginning of society in the world" and "beginner driver on the road" to others.

SHINee Taemin's dark charisma!

It contains a warning to those who judge their opponents by stereotypes.

Taemin's sharp singing rap, which expresses his cynical feelings, added charm.

Starting with a soft piano melody, "Would You Marry Me?" is a song with groovy instruments plus the popping sound of the Wobble Synth.

Lee Joon, Yoon Doo-joon of Highlight, and Kwang-hee, who worked with Jung Yong-hwa on MBC's entertainment show "Infinite Challenge" wedding singles in 2016, participated in the featuring to congratulate couples who are starting anew in difficult times, and to fans who have seen their friendship for a long time.

When you feel down and feel heavy, clap with people around you. It looks simple, but it can create a cheerful atmosphere in an instant with energy and laughter.

It reminds me if the precious things around me and people are really coincidental or meant to be.

Song Joong-ki starred in the music video.

The addictive chorus, "Giri Boy" and "Heize," are impressive lyrics that are exchanged with the individuality of the two artists.

In particular, the realistic content of comparing each other's positions to traffic conditions in the process of parting is more sympathetic.

There are times when you get hit by life and become dull with excitement.

Then one day, I feel strange and afraid of the small tremors in my heart that suddenly came, but I am also glad.

The song carefully captures the clumsy but clunky mind, perhaps unnoticed by being around all the time.

Through this song, I hope everyone recognizes the love that is nearby.

It is noteworthy that Jeon Mi-do directly participated in the OST singing following her passionate performance in the drama.

The new remake of the original song released by Shin Hyo-beom in 2006, "I Thought I'd Love You," is a song with a twist that shows Jeon Mi-do's real singing ability.

In my busy and breathtaking daily life, this moment when I want to leave somewhere. A trip that I want to give as a gift to all the young people who are exhausted from being hit around. It contains the hope that anyone in the world will always fly freely and find the most beautiful light in it.

The "Travel," which shows the unique refreshing and bouncy charm of Bolbbalgan4, is in contrast to the first half of the tropical house feel and the chorus of the pop rock feel, making the shoulders flutter this summer.

The one who came into my heart, shook me once, and left like the gentle wind.

I hope that when I become a little more mature as the ground hardens after the rain, my longing for him or my clumsy feelings can be kept in my heart.

The song "Wind Man," which is a combination of the gentle blowing of the loved one, is a song that conveys the purity and freshness of the first love like a warm spring breeze. Along with the waltz-like three-quarters beat rhythm, the vintage vocal sound expresses a girlish and dreamy mood.

The title song of the trendy R&B genre, 'Candy', Baekhyun's charm appeal song with no exit!

The title track "Candy" is a futuristic R&B song that has an impressive wave of trendy melodies that unfolds over addictive synth sounds, and the lyrics compare Baekhyun's colorful charm to various flavors of candy, which is witty.

In Sung Sikyung's sweet voice, love is perhaps not a special, dramatic scene, but a heart that we are always together in a normal and trivial day like walking and eating together.

Sung Si-kyung's voice, which sometimes recites and sometimes dreams, perfectly expresses the golden sunset scene, and the piano and guitar, which express gentle emotions at the border between jazz and pop, support his voice.

The string melody brings out its impressions and adds color to the beautiful harmonies so that they blend in with the deep emotions that seem to have returned to the distant past.