随着剧集的播出故事越发有趣令人沉迷其中，受到广大观众的喜爱并在关注中迎来大结局的《从天而降的一亿颗星星》OST合集正式发行。tvN水木剧《从天而降的一亿颗星星》(导演：柳济元，剧本：宋惠真)的OST合集中收录了两位主演参与作词和演唱的《星星，我们》、凭借特有的清丽音色而备受众人喜爱的An Ji Yeon《Lost》、在电视剧前半段每集片尾响起的李胜烈《Someday》，以及最后一首由具允会献唱的OST《Moonlight》4首歌曲，除此之外还收录了演奏曲15首，整张专辑的曲目共计19首，相信专辑中的丰富内容一定会给不舍电视剧结束的观众们带来安慰。[Credit]01. SomedayLyrics & Composed by 하현상 박재희Arranged by 이상훈Acoustic Guitar & Electric Guitar 이종현Bass 이상훈Drums 이상훈Piano & Synthesizer 이상훈Organ 이상훈Recorded by 김대성 양하정 신동주 김휘 @TONE StudioMixed & Mastered by 김대성 @TONE Studio02. 별, 우리Lyrics by 서인국, 정소민Composed by uk, 정수민Arranged by 정수민, ukString Arranged by 정수민Guitar 이태욱Keyboard 정수민, ukString 융스트링Recorded by 장우영 @둡둡String Recorded by 신동주 @TONE StudioMixed by 홍성준 @개나리싸운드Mastered by 도정회 @SoundMAX03. LostLyrics & Composed & Arranged by 이래언, RealmeeeGuitar 박준하Piano 이래언Recorded by 김시민, 신동주 @TONE StudioMixed & Mastered by 김대성 @TONE Studio04. MoonlightLyrics by Kako, Curtis FComposed by Kako, Curtis F, 정동환Guitar 이태욱Bass 장승호Drum 김진헌Piano 정동환Sting 융스트링String Arranged by 박민주 정동환Recorded by 홍은이 @Vibe StudioMixed by 이창선 @Prelude StudioMastered by 권남우 @821 Sound MasteringGuitar 유종현, 임하영Piano & Keyboard 임하영, 유종현, 임승범, Daniel LeeStrings The 1st.Solo Violin 이수Solo Viola 홍성원Solo Cello 임이랑Recorded & Mixed by 김희재, 임하영, 유종현 @CSMUSIC&, 뮤직스토리지 스튜디오