Rumours that the Genie in a Bottle singer would be performing with the music icon on the show began circulating on social media last week (ends08May16) and a source has now confirmed the news to

However, when asked about the special tribute reports, Christina remained tight-lipped, telling the website, "I am sworn to secrecy... I can't say anything, but I'm very excited about the finale. Very exciting things happening."

It was announced last year (15) that Whitney, who passed away in 2012, would be digitally resurrected in hologram form for a tour thanks to groundbreaking new technology by Hologram USA.

The singer's sister-in-law Pat Houston called the show "a great opportunity for her fans to see a reinvention of one the most celebrated female artists in history and to continue a legacy of performances that will not be forgotten in years to come".

Hologram USA founder Alki David added, "We've got technology that's causing a seismic shift in the entertainment industry, and a wonderful partnership with Pat Houston and the estate - I'm confident we'll create the ultimate celebration of Whitney's amazing artistry."

It is not known when the performance will take place, but it's thought the tribute will feature on the live final on 24 May (16), where Christina will compete with fellow coaches Blake Shelton, Pharrell Williams and Adam Levine to be winning judge.

The 35-year-old, who has previously sung Whitney hits I Have Nothing and Run To You live, currently has three contestants still left in the competition; Alisan Porter, Bryan Bautista and Nick Hagelin.