Raymu performs 'Titanium' by Sia – Nigerian IdolThis was not just a performance. For the Top 2 finalist, this was armour. Raymu took on Sia’s powerhouse anthem and matched it note for note, chest voice blazing, belts flying, control tight. If vocals were weapons, he came battle-ready. Watch Raymu go full vocal Avenger mode. Titanium never cracked like this.