According to Breathe heavy, Britney Spears & Beyonce are working together on Britney Spear’s upcoming album.
“The song is complete R&B with a very mysterious vibe to it. Mid-tempo and is definitely a well produced song. Britney herself actually went through weeks of vocal training to compete with Beyonce and people will be surprised by how Britney VOCALLY tackles the song. The song is not just a feat though. Kind of like Mariah’s Beautiful with Miguel, Beyonce gets a verse and Chorus, and Britney gets a verse and Chorus. They both sing the Bridge as well as the final chorus and word is that Britney will surprise all with how strong her vocals are on this track.”