Lady GaGa will perform with country duo Sugarland at the Grammy Nominations Concert Live! in Los Angeles on Wednesday night (30Nov11).
The big show will be the first performance for Sugarland star Jennifer Nettles as a married woman - the singer wed former model Justin Miller in Tennessee on Saturday (26Nov11).
Gaga confirmed her Sugarland duet in a tweet on Tuesday (29Nov11), writing, "I am so excited to Open and Close the Grammy Nomination concert 2moro (sic) night! What a blast rehearsing with Jennifer and Kristian. Sugarland!"