Nicki Minaj and Britney Spears talked about "a secret" as they tweeted each other about their tour announcement, sparking rumours that the pair could perform together as well as share the same billing.
Girls Fall Like Dominoes rapper Nicki is said to be "beyond thrilled" to be joining the Femme Fatale Britney tour in the US this summer as a support artist, after Enrique Iglesias pulled out, telling Britney on Twitter: "This tour's gonna KICK A**!"
She later added: "... and let's keep the "other thing" a secret for now... ;)", to which Britney replied: "All good things to those who wait..."
Britney is getting ready for a 26-date marathon tour and originally tweeted: "Could not think of a sexier Femme Fatale than @NickiMinaj to come on tour with me! Gonna be a hot summer people!"