Twitter index: World Music Day, Windows Phone 8

World Music Day or Fête de la Musique is a worldwide celebration of musical talent that takes place every year on June 21. The event began in France in 1982 and has since spread to cities in more than 100 countries around the world, with professional and amateur musicians alike taking to the streets for mostly free performances lasting long into the night. Ninth-placed trend "Dia de la Musica" is a Spanish phrase meaning "Day of Music," also related to Fête de la Musique.

Twitter users are also excited about the recently unveiled Windows Phone 8 mobile platform, which adds support for multicore processors, higher screen resolutions and newer wireless technologies such as Near Field Communication.

The top 10 most talked about topics on Twitter on June 21 at 12:45 PM GMT are:

01. #TurkishDirectionersAreProudOfZaynsReligion
02. #StuffIWouldThrowOnBTWBallStage
03. #ThoughtsAfterTheCondomPopped
04. Happy World Music Day
05. Jimmy Carr
06. Windows Phone 8
07. No Panty Day
08. Libertadores
09. Dia de la Musica
10. Moyano