Lewis Hamilton may make a secret appearance on Christina Aguilera's newest studio album, Liberation.

Multiple outlets have identified the four-time Formula One champion as artist XNDA, who duets with Aguilera on "Pipe." XNDA is also credited as a writer on the track.

When asked about the song, Hamilton sidestepped the question.

"My sole goal right now and focus is fully Formula One," Hamilton said, according to Alan Baldwin of Reuters. "It's not really something I want to speak about, I'm here really to talk and focus solely on trying to win this championships and that's really where all my energy is at the moment."

Aguilera has been secretive about XNDA's identity as well, stating that she's been "dying for everyone to find out as they're definitely multi-talented."

Hamilton spoke about his love of music in an interview with "60 Minutes" in 2015, telling host Charlie Rose, "Music's been a huge passion of mine since I was really young. I started playing guitar when I was 13."