Is Madonna Collaborating With Rihanna?

Now that the two are tying for most Billboard Hot 100 #1's with twelve a-piece, the singers may be heading to the studio to record a duet. The above photo, supposedly taken on the set of Madonna's new "secret project" with Steven Klein, hints strongly towards a duet between the ladies, despite the ambiguity around the photo itself and what exactly Rih is being sent.

When asked last year about a possible duet with Madge, Rih said "That would be so sick. I would love to. Who knows? Let's put it in the air. Madonna's still the s**t, and she'll always be Madonna. She's the queen."

Meanwhile, Madonna seems to be returning the favour, saying recently: "I like her too. I feel like I should be saying something more eloquent. I think she's sexy; I like her."

What kind of a project would you like to see from the two provocative songstresses? Do you think Rih is worthy of working with the "Queen of Pop"? Let us know below!