03/13/2009 at 02:00 PM EDT
There is no duet by Rihanna
and Chris Brown
despite previous reports
that the pair had recorded a song together, a label source tells PEOPLE exclusively.
"Contrary to published reports, Chris Brown and Rihanna did not record a duet after the incident," says the source, alluding to Brown's alleged assault
of his girlfriend last month.
Conflicting reports about a duet may have arisen because of a standard practice used during the development of new material. Last year, Brown and producer Polow da Don did write a song together, says the source.
Then, the source continues, "around August or September of 2008, Chris and Rihanna's vocals were recorded as the reference vocals for this demo only. [But] the song was never conceived or intended to be a duet between them, and was later recorded by other artists."
Reference vocals are created to give an understanding of how the writer intends a song to be sung on demo tracks sent out to other artists before the final recording process.
Turns out, the song was called "Bad Girl" – with lyrics focused on a women who overspends on designer goods – and was recorded by the Pussycat Dolls for the Confessions of a Shopaholic
soundtrack. But the reference vocals for the song made by Rihanna also leaked to the Internet in January.
Adds the source: "Nothing has been recorded by Chris and Rihanna together since February."
The confusion may also have been caused by the fact that Brown and Rihanna did record a duet last year called "Stronger," which was meant for Rihanna's album, but was never released.