Crossair introduced this unique promotional design for the Phantom of the Opera in 1994.
According to Wikipedia:
The Phantom of the Opera is a musical with music by Andrew Lloyd Webber and lyrics by Charles Hart with additions from Richard Stilgoe. Lloyd Webber and Stilgoe also wrote the musical's book together. Based on the French novel Le Fantôme de l'Opéra by Gaston Leroux, its central plot revolves around a beautiful soprano, Christine Daaé, who becomes the obsession of a mysterious, disfigured musical genius.
The musical opened in London's West End in 1986, and on Broadway in 1988. It won the 1986 Olivier Award and the 1988 Tony Award for Best Musical, and Michael Crawford (in the title role) won the Olivier and Tony Awards for Best Actor in a Musical. It is the longest running show in Broadway history by a wide margin, and celebrated its 10,000th Broadway performance on February 11, 2012,