The title track 'Ko Ko Bop', which was inspired by the rhythm play 'Down Down Baby' of English-American children, is an energetic reggae pop song that combines rhythmical reggae guitar with a heavy bass sound.

Members Chen, Chan-yeol and Baek-hyun participated in the lyrics, and the lyrics stand out, saying, "Don't be shy and dance according to the rhythm and let's stay together for the last night."

Also, the song title 'Ko Ko Bop' is a combination of 'Ko Ko' with funny pronunciation and 'Bop', which means dancing to music, and it is an exciting dance to the rhythm, drawing attention.

It is an electro-pop genre song that marks the beginning of the war, where a new worldview of exo begins.

'What U do?', which stands out with a refreshing atmosphere, is an impressive lyrics that expresses the heart of a loved one in a straightforward manner.

Starting with a cool electric guitar sound, 'Sunny Summer' is a cool pop dance song with the excitement of a summer night felt by girls.

GFRIEND's unique refreshing vocals and funky rhythms combine to give listeners the feeling of being on the cool beach.

Whether you lead your tired body, sea, river, mountain, leave, rest and energy, even that little luxury is not allowed, but let's do anything.

Why don't you go into your wildest imagination. The beach? Or by the river? Do you like the mountain? Why don't you take off your mask and laugh together while eating delicious food? Let's go. Whatever. Wouldn't it make you feel better? Let's wear earphones and leave together.

Vocalist Kim Shinui's 3 minutes and 30 seconds of comfort. I hope it'll be a small break or comfort.

An exciting dance song with the shy confessions of the girls "From today we" is a song that "Glass Bead" 'GFRIEND' and the songwriting team 'I'Easy', 'Yongbae' once again worked hard for 'GFRIEND'

It features an easy chorus that everyone can sing along to on a bounce rhythm full of swings, and it maximizes the healthy and lively feel of the rocking gist "GFRIEND," which is reversed following a shy intro.

The lyrics in Hook, which sounds like a skat, "Me Gustas Tu" likes you.The Spanish word " adds the fun of listening to music.

The body will move on its own with the overflowing excitement of funky synthesizers, guitars and mugs.

The groovy synth sound is an attractive synth-pop genre. The song, which features a minimal track made with colorful musical instruments, further enhanced the sophistication of the song by focusing on the perspective of the five senses. It tells the story of a beautiful moment when you fall in love, and the world you see is all colored with light.

In the music video, MAMAMOO members play with glasses and sunglasses and smile brightly. It also emphasizes the unique props of Jukebox and the image space, highlighting the colorful images of the members.

It is a minimalist pop genre song led by a unique and simple synth and beat, and the lyrics express the message of moving toward dreams with NCT DREAM in a confident attitude.

It is a powerful pop song that captures the signature power of MONSTA X.

It is an impressive song with a variety of compositions and MONSTA X's rap and vocals that crosses between the 808 base that continues to drive throughout and the flamboyant voice synth on the dynamic drum.

The music video has a mysterious atmosphere in which MONSTA X plays a private detective who spends time chasing unknown clues.

You can feel scary just by listening to the lyrics.

However, it is a hopeful song with the imagination that if we fall, we will fly away from the other side of the world.

The song is based on Newton's discovery of universal attraction.

On top of emotional EDM music, Jaffee's lyrics and melodies, and MONSTA X rappers I.M and Jooheon's sophisticated rap were added.

"Newton" expressed the intensity unique to 'MONSTA X' in a foreign accent, becoming a soft and strong MONSTA X ticket summer song.

It is a song that features a future bass-based trendy electronic guitar and synth, and you can feel a mournful emotion as ASTRO members melt the messages they have wanted to convey in the song.

'ICY' is a "2019 Summer Song" that expresses a cold-looking exterior but full of passion inside.

It shows the five members of ITZY, full of powerful dreams and confidence, coolly decorate the hot summer and head upward without hesitation.

It is a pop genre based on hip-hop, and the Latin guitar line opens the door to the song, leading the atmosphere.

And the members give advice in witty lyrics to those who shout that their standards are the only answer.

The colorful rapping adds to the fun of listening to the song, and the powerful chorus and performance afterwards clearly show the charm of the wild and free-spirited ATEEZ.

"INCEPTION," which combines softness and intensity, is an urban-style EDM that expresses the longing for an existence that cannot be touched as if it were dreaming in a dream.

The narrative of the song unfolds along the emotional melody on the intense beat, which highlights the members' emotional lines that express it delicately. You can feel the boyishness of the dreamy and dreamy members that have never been seen before.

You can feel the charm of more mature SF9, which expresses the lyrics of emotions that are uncontrollably burning toward love with restrained emotions.