Britney Spears and Lady Gaga Worry Us With Duet RumorHillary Crosley Coker2/05/14 11:50amFiled to: Britney SpearsLady GagaRihannaShakira431EditPromoteShare to KinjaToggle Conversation toolsGo to permalinkToday in things that make us nervous, Britney Spears and Lady Gaga are supposedly planning a duet. Do we really need this? AdvertisementThe two stars chatted about collaborating in Las Vegas this weekend and apparently it was all cuddles and kisses."During the song 'Till the World Ends,' Gaga walked to the pit and tossed Britney roses," an eyewitness tells Us of the "Applause" singer, 27, and the "Hold It Against Me" performer, 32. "Brit blew her a kiss!"Yay? Brit Brit reportedly said that she wanted to work with Gaga last year while chatting with her fans. The Vegas showgirl said she found the New York native "very different and interesting and intricate." I just hope Britney and Gaga's song will be better than Shakira and Rihanna's — we can only handle one sad, expensive pop song per quarter.