Which singer joined Beyoncé for the duet “Telephone”?

Lady Gaga joined Beyoncé for the duet “Telephone.”

The song appears on Lady Gaga’s 2009 extended play The Fame Monster. Gaga wrote it with Beyoncé, Rodney Jerkins, LaShawn Daniels, Lazonate Franklin, and Christopher “Tricky” Stewart. The track presents a tense, dance-oriented exchange about feeling pressured by a persistent caller.

“Telephone” followed the artists’ earlier collaboration on “Video Phone,” which appeared on a deluxe edition of Beyoncé’s 2008 album I Am... Sasha Fierce. The two songs are related collaborations but are not the same recording, a distinction that can cause confusion.

The “Telephone” music video is a short-film-style production that continues the story from Gaga’s “Paparazzi” video. It features both performers and became known for its elaborate costumes, choreography, and visual references to exploitation-road-film imagery.