As per a report, for a special duet episode of The Voice, hologram of Houston is coming. But it is not disclosed when that will go on air.
Aguilera said: "I am sworn to secrecy. I can't say anything, but I'm very excited about the finale. Very exciting things happening".
Aguilera rejoice rumours she would be paying tribute to Houston, who was found dead in her hotel room in February 2012, on the talent competition after photographs and videos surfaced on social media last week of her glammed up and singing with the virtual likeness.