More than 14 million tweets were sent during The Grammys

"Tonight’s GRAMMY awards brought together the biggest stars from each corner of the music world. Fans tuned in to see who took home the hardware, and also to take in the blockbuster performances. Throughout the evening, fans sent more than 14 million Tweets about the GRAMMYs.
The biggest spikes in Twitter conversation about the show came during these memorable moments:
-Jay-Z, Kanye West, Frank Ocean, and The Dream win for best rap collaboration (and Jay-Z jokes about The Dream’s hat): 116,400 TPM
-Rihanna’s solo performance: 114,800 TPM
-Prince announces Record of the Year: 109,400 TPM
-Fun. wins best new artist: 100,600 TPM
The star-studded performances were big topics of conversation as well, as fans watched unique collaborations and jaw-dropping theatrics. The on-stage performances that generated the most buzz were:
-Rihanna’s solo performance of “Stay”
-Bob Marley tribute (featuring Sting, Bruno Mars, Rihanna, and Ziggy Marley)
-Carrie Underwood performs “Blown Away”
-Maroon 5 and Alicia Keys collaboration
-Justin Timberlake performs with Jay-Z
Whether it was because of their performance, their victory, or maybe their attire, these artists individually were the hottest topics of conversation on Twitter:
1. Rihanna
2. Frank Ocean
3. Taylor Swift
4. Beyonce
5. Justin Timberlake
6. Ed Sheeran"
Source:  Blog post from Twitter, 10th February 2013
Earlier - 2012 Grammy Awards were the most social TV event ever