She tweeted: "Would love to do a duet with Robbie Williams . where are you? lol. (sic)"
It would seem that Britney is a fan of all things British, as she also stated that London is one of her favourite cities in the world.
She said: "I like New York, but I also LOVE London! (sic)"
Britney - who lists her favourite of her own songs as 'Toxic' - also admitted she loves nothing more than taking sons Sean Preston, four, and Jayden James, three, out driving, where she performs special songs she writes just for them.
She explained in an online fan question and answer session: "I love to take my boys on car drives, and sing songs to them about Mary Poppins that I make up."