Answer: 10 Million
An album or single must have sold at least 10 million copies before it receives diamond certification from the RIAA.

Answer: Opus Number
Opus numbers are the numbers you usually find attached to the name of a classical work, such as 'Symphony No. 4', etc. These indicate the order in which the artist produced these works.

Answer: Theremin - It's familiar, haunting tones are coaxed out of the machine by waving one's hands around it.

Answer: Mason Bates
Mason Bates first opera piece, "The (R)evolution of Steve Jobs" based on the life of the titular businessman, earned him the 2019 Grammy for Best Opera Recording.

Answer: Johann Sebastian Bach
In 1736, Johann Sebastian Back was appointed "Royal Court Composer" by King Augustus III, with that entitlement greatly increasing his public recognition.

Answer: Green Day
Green Day performed - and then perished - at the beginning of this animated movie based on the long-running television show by the same name.

Answer: The Rolling Stones

Answer: The Spice Girls
The BRIT Award for Outstanding Contribution to Music - previously won by the likes of the Beatles and Queen - was presented to the Spice Girls in the year 2000.

Answer: September 20th

Answer: N.W.A.
Ice Cube, member of N.W.A., defended their induction into the Rock and Roll Hall of Fame by stating, "You goddamn right we rock n' roll."