Rule of Threes is the seventeen single by Australian band Mondo Rock, released in 1986.

[1] It was released as a first single from Mondo Rock's fifth studio album Boom Baby Boom.

The song reached at number 58 on the Kent Music Report.

[2] The song was written by Mondo Rock's guitarist Eric McCusker.

[3] AUS 7" Single Production This 1980s rock song–related article is a stub.