In Wild at Heart , the band is singing “Love Me Tender” —it’s the Elvis song that gets used in the film’s musical scene.

Quick context

The movie is David Lynch’s Wild at Heart , and the soundtrack is one of the things people remember most about it. A related music moment from the film that often gets discussed is Chris Isaak’s “Wicked Game,” which became strongly associated with the movie.

If you meant the soundtrack scene

  • “Love Me Tender” is the band performance most directly tied to the question.
  • “Wicked Game” is another iconic song connected with the film’s music identity.

TL;DR

The band is singing “Love Me Tender” in Wild at Heart.