Dean Domino's "Saw Her Yesterday" song is a holodisk in the Fallout: New Vegas add-on Dead Money.
Location
In Vera's room in the backstage of The Tampico on a table next to a radio.
Transcript
This holodisk contains Dean Domino's melody, "Saw Her Yesterday."
Behind the scenes
This is really just an excerpt of the song Something's Gotta Give.