View source for Blue Birthday OST

==On Rainy Days (2021) (Blue Birthday OST)==
;Information
[[File:On Rainy Days (2021) (Blue Birthday OST).jpg|thumb|200px|On Rainy Days (2021) (Blue Birthday OST)]]
*'''Title:''' 비가 오는 날엔 (2021) (블루버스데이 OST) / On Rainy Days (2021) ([[Blue Birthday]] OST)
*'''Artist:''' [[Heize]]
*'''Language:''' Korean
*'''Release Date:''' 2021-Aug-04
*'''Number of Tracks:''' 2
*'''Publisher:''' Genie Music (지니뮤직), Stone Music Entertainment
*'''Agency:''' PLAYLIST

;Track Listing
{| class="wikitable"
! No.!! Song Title !! Artist
|-
| 1. || On Rainy Days (2021) <br> 비가 오는 날엔 (2021) || [[Heize]]
|-
| 2. || On Rainy Days (2021) (Inst.) <br> 비가 오는 날엔 (2021) (Inst.) || Heize
|}

==Even Days (2021) (Blue Birthday OST)==
;Information
[[File:Even Days (2021) (Blue Birthday OST).jpg|thumb|200px|Even Days (2021) (Blue Birthday OST)]]
*'''Title:''' 어떤 날도, 어떤 말도 (2021) (블루버스데이 OST) / Even Days (2021) ([[Blue Birthday]] OST)
*'''Artist:''' [[O3ohn]] (오존)
*'''Language:''' Korean
*'''Release Date:''' 2021-Aug-17
*'''Number of Tracks:''' 2
*'''Publisher:''' Genie Music (지니뮤직), Stone Music Entertainment
*'''Agency:''' PLAYLIST

;Track Listing
{| class="wikitable"
! No.!! Song Title !! Artist
|-
| 1. || Even Days (2021) <br> 어떤 날도, 어떤 말도 (2021) || [[O3ohn]] (오존)
|-
| 2. || Even Days (2021) (Inst.) <br> 어떤 날도, 어떤 말도 (2021) (Inst.) || O3ohn (오존)
|}

==It's You (Blue Birthday OST)==
;Information
[[File:It's You (Blue Birthday OST).jpg|thumb|200px|It's You (Blue Birthday OST)]]
*'''Title:''' It's You (블루버스데이 OST) / It's You ([[Blue Birthday]] OST)
*'''Artist:''' [[Colde]] (콜드)
*'''Language:''' Korean, English
*'''Release Date:''' 2021-Aug-24
*'''Number of Tracks:''' 2
*'''Publisher:''' Genie Music (지니뮤직), Stone Music Entertainment
*'''Agency:''' PLAYLIST

;Track Listing
{| class="wikitable"
! No.!! Song Title !! Artist
|-
| 1. || It's You || [[Colde]] (콜드)
|-
| 2. || It's You (Inst.) || Colde (콜드)
|}

==It's You (Yeri of Red Velvet) (Blue Birthday OST)==
;Information
[[File:It's You Yeri (Blue Birthday OST).jpg|thumb|200px|It's You (Yeri of Red Velvet) (Blue Birthday OST)]]
*'''Title:''' It's You (예리 of Red Velvet) (블루버스데이 OST) / It's You (Yeri of Red Velvet) ([[Blue Birthday]] OST)
*'''Artist:''' [[Yeri]] of [[Red Velvet]]
*'''Language:''' Korean, English
*'''Release Date:''' 2021-Sep-02
*'''Number of Tracks:''' 2
*'''Publisher:''' Genie Music (지니뮤직), Stone Music Entertainment
*'''Agency:''' PLAYLIST

;Track Listing
{| class="wikitable"
! No.!! Song Title !! Artist
|-
| 1. || It's You (Yeri of Red Velvet Ver.) <br> It's You (예리 of Red Velvet Ver.) || [[Yeri]] of [[Red Velvet]]
|-
| 2. || It's You (Yeri of Red Velvet Ver.) (Inst.) <br> It's You (예리 of Red Velvet Ver.) (Inst.) || Yeri of Red Velvet
|}

==Blue Birthday OST==
;Information
[[File:Blue Birthday OST.jpg|thumb|200px|Blue Birthday OST]]
*'''Title:''' 블루버스데이 OST / [[Blue Birthday]] OST
*'''Artist:''' Various Artists
*'''Language:''' Korean, English
*'''Release Date:''' 2021-Sep-28
*'''Number of Tracks:''' 12
*'''Publisher:''' Genie Music (지니뮤직), Stone Music Entertainment
*'''Agency:''' PLAYLIST

;Track Listing
{| class="wikitable"
! No.!! Song Title !! Artist
|-
| 1. || On Rainy Days (2021) <br> 비가 오는 날엔 (2021) || [[Heize]]
|-
| 2. || Even Days (2021) <br> 어떤 날도, 어떤 말도 (2021) || [[O3ohn]] (오존)
|-
| 3. || It's You || [[Colde]] (콜드)
|-
| 4. || It's You (Yeri of Red Velvet Ver.) <br> It's You (예리 of Red Velvet Ver.) || [[Yeri]] of [[Red Velvet]]
|-
| 5. || On Rainy Days (2021) (Inst.) <br> 비가 오는 날엔 (2021) (Inst.) || Heize
|-
| 6. || Even Days (2021) (Inst.) <br> 어떤 날도, 어떤 말도 (2021) (Inst.) || O3ohn (오존)
|-
| 7. || It's You (Inst.) || Colde (콜드)
|-
| 8. || It's You (Yeri of Red Velvet Ver.) (Inst.) <br> It's You (예리 of Red Velvet Ver.) (Inst.) || Yeri of Red Velvet
|-
| 9. || Am I Dreaming || [[Ming Ki]] (밍키)
|-
| 10. || Running || Ming Ki (밍키)
|-
| 11. || Suspicion || Ming Ki (밍키)
|-
| 12. || Illusion || Ming Ki (밍키)
|}

==Notes==
*The complete OST that was released on September 28, 2021 was sold as a physical CD-only release through the website Makestar—a crowdfunding website that includes OSTs of various dramas.

==See Also==
*[[List of OSTs released in Korea in 2021]]

[[Category:KOST]]