The Grammys Were mentioned 290,000 times on Instagram

"People also flocked to Instagram to like and comment on their favorite celebrities’ photos. Timberlake gained 90,000 followers in one night (he launched his Instagram account Sunday afternoon). Clarkson also launched her Instagram account Sunday, gaining 32,000 followers.
Rihanna was mentioned on Instagram 80,000 times, Swift 69,000, Beyoncé 52,000, Ed Sheeran 46,000, Prince 43,000, and Perry 21,000. The Grammys were mentioned 290,000 times."

Source:  All Facebook, 11th February 2013