Rihanna and Shakira have reportedly collaborated for a new single.Reports of Rihanna and Shakira’s collaboration have appeared on Twitter, with Chief Marketing Officer for Pepsi Frank Cooper writing: "Rihanna and Shakira working on a hot duet. Epic!”The currently unnamed track is said to be the lead single from Shakira’s first English speaking album since 2009’s ‘She Wolf’.Shakira previously teamed up with Beyoncé on 2007’s ‘Beautiful Liar’, which topped the UK charts and entered the top ten in 20 countries.