Mr. Bad Guy is the only solo studio album by British musician Freddie Mercury, lead singer of Queen. Released in 1985, during a period in which Queen were on hiatus from recording, it contains eleven songs, all written by Mercury himself.

Freddie Mercury was a British singer and songwriter who achieved worldwide fame as the lead vocalist and pianist of the rock band Queen. Regarded as one of the greatest singers in the history of rock music, he was known for his flamboyant stage persona and four-octave vocal range. Mercury defied the conventions of a rock frontman with his theatrical style, influencing the artistic direction of Queen.