Youngest professional rock band
Who
Black Diamonds
Where
United States Boston
When

The youngest professional rock band is Black Diamonds (USA), whose four members had an average age of 11 years 130 days, at the time of their debut album release on 19 December 2010.

The band consists of Wolfgang Burger on Bass Guitar, Henry McIntyre on Guitar, AJ Marks on Vocals and Nick Calnan on Drums.