Serious

Vocals: Marion Jola - Mixer: Stevano - Mastering Engineer: Dimas Pradipta - Producer: S/EEK - Keyboards: Adrian Rahmat Purwanto - Synthesizer Programming: Adrian Rahmat Purwanto - Drums: Jessilardus Mates - Programming: Marco Steffiano - Electric Guitar: Devinza Kendranata - Electric Bass: Rishanda Singgih - Vocal Arranger: Irv Nat - Editor: Irv Nat