Tolong jelaskan mengenai Duet dari Indonesian Idol (musim 12)

Top 4 - "Kau" (T-Five) X "Hanya Memuji" (Shanty feat. Marcell Siahaan)

Delon Thamrin, Judika, Monita Tahalea, Ihsan Tarore, Gaby Christy, Aris Runtuwene, Citra Scholastika, Regina Ivanova, Prattyoda Bhayangkara, Nowela, Maria Simorangkir, Novia Bachmid, Rimar Callista, Mark Natama - "Idola Indonesia" X "Ekspresi" (Titi  DJ)

Top 4 - "Idola Indonesia"