Manny [Waste My Time] CREDIT Producer by Manny All songs & written by Manny, HEEE Composed by Manny, HEEE Lyrics by Manny, HEEE Arranged by Manny Vocal & Chorus Performed by HEEE Piano Performed by 서해인 Bass Performed by Manny Drum Programming by Manny Strings Arranged by 조성익 All Recording by Manny Mixing by Manny Vocal Mixing Engineer by 곽태영 [Studio Bittersweetsound ] Mastering Engineer by 권남우 [821 Sound Mastering] Artwork by Manny