Colin Whitton McCallum (4 August 1852 – 23 November 1945), known by his stage name Charles Coborn, was a British music hall singer and comedian.

During a long career, Coborn was known largely for two comic songs: "Two Lovely Black Eyes", and "The Man Who Broke the Bank at Monte Carlo."

In his autobiography he stated: "[I] liked the tune very much, especially the chorus, but I was rather afraid that some of the phrasing was rather too highbrow for an average music hall audience."

[6] Coborn confirmed that Gilbert's inspiration was the gambler and confidence trickster Charles Wells, who was reported to have won one-and-a-half million francs[7] at the Monte Carlo casino, using the profits from previous fraud.

", part of the music hall tradition of (normally conservative) social comment; "I've Loved Another Girl Since Then";[5] "He's All Right When You Know Him"; and "I've Never Turned Money Away", which created controversy when Coborn performed it using the stereotyped manner of a Jew in a Jewish-owned theatre (he apologised afterwards, but was banned from appearing in the venue again).