The song Telephone is by Lady Gaga, and features Beyonce.
Beyonce
Lady Gaga
Beyonce Knowles :)
Lady gaga
Lady GaGa and Beyonce.
Lady Gaga and Beyonce.
Beyonce :)
if you mean which other artist featured in lady gaga's 'telephone', then the answer is beyonce Knowles
Telephone ft. Lady GaGa
Beyonce
Yes. The video is for Beyonce's song "Video Phone." They also collaborated on Lady Gaga's song "Telephone."