Lady Gaga and Christina Aguilera met for the first time and performed together on the song “Do What U Want” live on The Voice Season 5 Finale on December 17, 2013.

Lady Gaga explained the musical union by saying, “I was really excited because The Voice called and wanted me to perform on the finale and I obviously can’t refuse. Such an amazing show and I said I’ll do it, but I want to know if Christina will do it with me.”

Christina said, “This is the first time we’ve ever met and I have to say, when I heard she wanted to collaborate I said, ‘Of course! Lady Gaga!’ I’ve been waiting to meet her. She’s such an innovative artist and a risk taker and as a fellow female, I have so much respect for that.”

Christina added, “And I just have to say guys, she’s like the most down to earth real person that I’ve ever met in this business. Female to female in this industry, it’s really hard to find that kind of a person. I love you girl and you deserve everything that you’ve earned.”

Watch Lady Gaga and Christina Aguilera’s duet in the video clip below: