Twitter index: The Rolling Stones, Mont Blanc

It was 50 years ago today when British rock group The Rolling Stones first took to the stage at the Marquee Club in London. Half a century and over 20 studio albums later, the Stones are still going strong, with rumors of a upcoming tour circulating. Twitter users are discussing the band with sixth-place trending topic "Rolling Stones."

In tenth place among trending topics on Twitter, microbloggers are sharing news about the avalanche that occurred on Mount Blanc early this morning, catching a group of 28 climbers in its wake and believed to have left at least six people dead.

Fans of Demi Lovato are also celebrating the anniversary of her track "Skyscraper," which premiered on July 12, 2011, by trending "Happy Skyscraper Day," while other Twitter users are being honest and giving relationship advice with the hashtags #HowToKeepARelationshipWithMe and #HonestHour.

The top 10 most talked about topics on Twitter on July 12 at 12:50 PM GMT are: 

01. #HowToKeepARelationshipWithMe
02. #HonestHour
03. #camprock2
04. Friday the 13 th
05. Happy Skyscraper Day
06. Rolling Stones
07. PSG
08. Feliz Jueves
09. Nederlanders
10. Mont Blanc