Pair said to be collaborating at music event
The Poker Face singer and Elton, 62, are apparently in the process of finalising a duet.
The prestigious music ceremony takes place in LA on Sunday.
Lady GaGa, 23, real name Stefani Germanotta, is nominated for five awards.
She has previously collaborated with Beyoncé Knowles, 28, on Telephone and Video Phone.
SEE PICTURES Lady GaGa fashion superstar>>