Original soundtracks, or OSTs, are a common feature of drama, anime, and web series. K-dramas are known for having some of the best OSTs in particular. In addition to having a strong plot, a show's OSTs can help it become more memorable and well-liked. Sometimes a show's OST gains more recognition than the show itself. OST also includes background music, mood, and incidental music in addition to the opening and closing themes. Along with creating their own music, K-Pop idols have long contributed to the soundtracks of K-dramas, web series, and anime. Vocals for OSTs are recorded by a large number of idols from various K-Pop groups. In several award shows, there is even a category for the best OSTs.

Here we will have a look at some of the OSTs performed by the idols of the fourth generation of K-Pop, i.e., the idols that debuted in recent years.

AESPA Winter and Ningning: Once Again (Our Blues)

Winter and Ningning, two vocalists from SM's youngest girl group AESPA, performed “Once Again” for 2022’s TVN’s K-drama series ‘Our Blues.’ “Once Again” is the OST part 10 of the series. ‘Our Blues’ is one of the highest-rated series in Korean Cable television history.

CIX: Win (The God of high school)

Win is a Japanese digital single by C9 Entertainment’s boy group CIX which is featured as the ending theme OST for the anime television series ‘The God of High School,’ which is based on the webtoon of the same name.

Enhypen: I need the light (Mimicus)

“I Need The Light” is the first Korean OST of Hybe X Belift lab's boy group Enhypen. The whole group participated in it. The song is one of the OSTS of the Korean web drama series ‘Mimiscus.’ Enhypen’s member Sunghoon even made a cameo appearance in the series.

Enhypen: Forget Me Not (Re-Main)

“Forget Me Not” is one of the tracks of Enhypen's Japanese debut album, which is used as the opening theme OST for the anime series “Re-Main.” This is the first original Japanese language OST released by the group.

Everglow: Let Me Dance (The Spies Who Loved Me)

“Let Me Dance” is an OST recorded by Yuehua Entertainment’s girl group Everglow. The song is used as a special track OST for the K-drama ‘The Spies Who Loved Me.’ Only four members of the group E:U, Sihyeon, Mia, and Aisha participated in it.

(G)I-DLE: Help Me (Her Private Life)

‘Her Private Life’ is a Korean drama based on the Korean novel “Noona Fan Dot Com.” Part 1 OST of the series “Help Me” was recorded by the members of Cube Entertainment’s girl group (G)I-DLE. Leader Soyeon also participated as a lyricist of the song.

ITZY Lia: Always Be Your Star (The Red Sleeve)

Lia is the main vocalist of JYP entertainment’s girl group ITZY. Lia recorded her first OST titled “Always Be Your Star” for the K-drama 'The Red Sleeve.' The series is a romantic historical drama that was aired from November 2021 to January 2022.

NMIXX: Hey Gabby & Sprinkle Party (Gabby’s Dollhouse)

“Hey Gabby” and “Sprinkle Party” are both the first two OSTs recorded by JYP Entertainment’s rookie girl group NMIXX. The songs are used as special OSTs for the Korean version of Netflix Original’s American live-action animated series ‘Gabby’s Dollhouse.’

Secret Number: Love Maybe (Business Proposal)

“Love Maybe” by Secret Number is the OST part five of 2022’s popular SBS TV’s K-drama series ‘Business Proposal.’ The Series is also available on Netflix. Three members of the group, Dita, Soodam, and Zuu, take part in making the OST.

STAYC: STAR (Our Blues)

One of the OSTs for ‘Our Blues,’ one of the highest-rated K-dramas of this year, is "Star," which is the eighth OST of the drama. It was performed by the fourth-generation girl group STAYC from High up Entertainment. Each individual member took part in the song.

Stray Kids Seungmin: Here Always (Hometown Cha Cha Cha)

“Here Always” is OST part 7 of ‘Hometown Cha-Cha-Cha’ which is one of the most popular Korean dramas of 2021. The track is the first solo OST of Seungmin, the vocalist of JYP entertainment’s fourth-generation boy group Stray Kids.

CLOSE TO YOU (Love In Contract)

'Love In Contract' is an ongoing romantic comedy South Korean drama series by tvN network. Seungmin also participated in the OST part 3 of the series.

Stray Kids: TOP & Slump (Tower of God)

The Japanese version of the song titled “TOP” is the first Japanese digital single of Stray Kids. The song was featured as an opening theme OST for the anime television series ‘Kami no Tou- Tower of God’ along with “Slump” as an ending theme OST.

TREASURE: BEAUTIFUL (Black clover)

One of the OSTs of the anime ‘Black Clover’ titled “Beautiful,” is recorded by the members of YG Entertainment’s boy group Treasure. The song, which is used as the ending theme 13, is the first release of the group in the Japanese language. Treasure’s rapper Yoshi also participated as a lyricist in this song.

TREASURE: BFF & Gonna Be Fine (The Mysterious Class)

“Best Friend Forever” and “Gonna Be Fine” are the OSTs of TREASURE’s web drama from 2021 ‘The Mysterious Class.’ The track “BFF” is performed by all of the members of Treasure. The group’s leader Choi Hyunsuk participated as a composer and lyricist in this song. “Gonna Be Fine” was recorded by Jihoon, Haruto, Jeongwoo, and former member Bang Yedam.

TXT: Everlasting Shine (Black Clover)

“Everlasting Shine,” a song in Japanese by TXT, is the first OST sung by the group. The song is featured as an opening theme of the anime series ‘Black Clover,’ which is adapted from the manga of the same name.

TXT: Your Light (Live On)

“Your Light” is the first Korean drama OST by TXT. The song is the main theme song of the JTBC K- drama series named ‘Live On,’ a high school romantic comedy-drama.

TXT: Love Sight (Doom at your service)

“Love Sight” by TXT was featured as the main theme song of 2021’s tvN’s romantic drama series ‘Doom at Your Service.’ All of the members of Hybe’s boy group participated in the song.

What are your favorite OSTs? Which solo artists or K-Pop groups do you want to participate in OSTs? Let us know in the comment section below.