"2HB" is short for "To Humphrey Bogart." Frontman Brian Ferry employs in the lyrics the screen legend's famous line from Casablanca, "Here's looking at you, kid."
Ferry told The Sun: "I was a big fan of cinema and found a lot of inspiration there, as you can see in the song 2HB."
Other songs on the Roxy Music album that were inspired by classic movies include "Chance Meeting," which tips the hat to Trevor Howard and Celia Johnson's romantic 1940s film Brief Encounter and "The Bob (Medley)," which references the 1968 war epic Battle Of Britain.
Bryan Ferry recorded his own solo version of the song for his 1976 album Let's Stick Together.