On music’s biggest night, social media networks exploded with commentary, making the 55^th GRAMMY Awards this year’s second-most popular event with close to 15.5 million interactions as reported by Trendrr, a social TV analytics provider (via Billboard).

According to the report, on social media the most-mentioned moment of the GRAMMY Awards came when Frank Ocean’s Channel Orange won Contemporary Urban Album, besting Chris Brown’s Fortune. The spike in commentary would appear to be in response to the ongoing drama between the two R&B singers, culminating in a recent parking lot altercation in Los Angeles.

A different social analytics firm, Networked Insights (via the L.A. Times), found that the most popular GRAMMY moment on Twitter alone was when Jay-Z joked about producer The-Dream’s Boyz N the Hood and “parental advisory” headgear while accepting the award for Best Rap/Sung Collaboration for the song “No Church in the Wild.” Networked Insights found that the joke elicited 116,400 tweets per minute during the live east coast telecast, a number corroborated by Twitter via Mashable.

Following Jay-Z’s joke, the second-most tweeted moment was Prince announcing Gotye’s “Somebody That I Used to Know” as Record of the Year (109,400 Tweets) and fun. winning the GRAMMY for Best New Artist (100,600 Tweets).

Networked Insights says the most-mentioned GRAMMY artists on Twitter this year were Rihanna, followed by Frank Ocean, Taylor Swift, Beyonce and Justin Timberlake rounding out the top 5.

Neither report mentioned numbers regarding singer Katy Perry’s much-discussed cleavage-bearing GRAMMY dress or Jennifer Lopez’s exposed leg.

-Scott T. Sterling, CBS Local