BTS' OST 'Film Out': Live stream, release date, concept and all you need to know about collab with Japanese band Back Number for 'Signal'

BTS is collborating with Japanese rock band Back Number for a song named 'Film Out' which will be the original soundtrack for the upcoming Japanese movie 'Signal'

                            BTS' OST 'Film Out': Live stream, release date, concept and all you need to know about collab with Japanese band Back Number for 'Signal'
V, SUGA, Jin, J-Hope, RM, Jimin and Jungkook of BTS preparing for OST 'Film Out' (Getty Images)

BTS is undoubtedly one of the biggest bands in the world right now and their music keeps on getting better album after album. After conquering the Billboard charts for so many months, the band is set to enthrall the listeners with a new song titled ‘Film Out’. The original soundtrack (OST) will be featuring in the upcoming Japanese movie ‘Signal’ which is expected to premiere on April 2, 2021, in Japan.

The theme song 'Film out' is an emotional ballad that speaks of that person who still comes to mind and never disappears from the heart.


Jimin tops brand reputation ranking for 26 months, here are all the BTS members and 10 K-pop idols on the list 

BTS on 'MTV Unplugged Presents': Live stream, release date, time and all pre-buzz around OT7 special starring blonde Jungkook

As soon as the announcement for the BTS’s new song surfaced online, the fans took to social media and started trending “Film Out” across all social media platforms. 

Jungkook will be producing the song while Back Number, the Japanese rock band, has given the music for the soulful song that fans can’t wait to hear.
Jungkook has produced a lot of songs for BTS. Meanwhile, this would be the second time that the talented musician will be serving as a producer on a Japanese OST. He has already produced the Japanese song ‘Your Eyes Tell’, which was featured as an OST on the television series with the same title. The song claimed the numero uno position on the Billboard US World Digital Songs chart in 2018.

Release date

There is no official release date for the song as of yet. However, the movie is going to be released on April 2, 2021. The song will be a part of the Japanese movie ‘Signal’ which is a spin-off of the Japanese TV drama series from 2018. 

Official poster of the Japanese movie 'Signal' (TOHO)


Popular music website Billboard shared that Jungkook was really inspired by a melody line created by Iyori Shimizu (Back Number) and proposed a new melody. This is how 'Film Out' started. Talking about the song, Jungkook revealed that he really liked working on the song because the melody created by Shimizu is very “fascinating”.

Jungkook added: “I am very happy to be in charge of the theme song for a further scaled-up movie, and I am very much looking forward to the work.  This is a song that I really liked while working, so I hope everyone likes it. It's a ballad song with a sad melody and lyrics, but I think it's a song that can ‘cry’ the hearts of many people.”

Jungkook of BTS performs onstage during 102.7 KIIS FM's Jingle Ball 2019 Presented by Capital One at the Forum on December 6, 2019 in Los Angeles, California. (Getty Images)

On the other hand, Shimizu noted that as soon as he heard the story of the movie, a melody started ringing in his head. He also expressed gratitude toward all the BTS members for their “expressiveness” on the song.

Shimizu said, “I was worried because it was my first time to make a song assuming that someone other than myself would sing, but the efforts of the experienced staff and co-arranger UTA, the exciting exchange with JUNG KOOK, And thanks to the individuality and expressiveness of each BTS member, I am happy that a very lyrical and powerful song has been completed.”

Japanese Rock brand Back Number (Twitter)

Track List

As of now, there is no information on how many songs will be included in the OST of the movie. We will keep you updated as soon as more information is available.


A 30-second snippet of “Film Out” was attached to the film’s trailer to excite the fans.

The lyrics go: “淡々と降り積もった記憶の中で
君がささやく言葉が  その響きが
浮かび上がる君は あまりに鮮やかで”

The rough translation of the song on Google reads, “In the memory that has accumulated lightly, pick up only you and connect. While looking in the room, I hug you and sleep. The words you whisper lost a place to go. You who emerge are too vivid.”

Jimin, Jungkook, RM, J-Hope, V, Jin, and SUGA of the K-pop boy band BTS visit the "Today" Show at Rockefeller Plaza on February 21, 2020 in New York City. (Getty Images)


Where to stream and how to live stream

We will update the story as soon as any information about streaming is available.

If you have an entertainment scoop or a story for us, please reach out to us on (323) 421-7515