iTunes activity

THE iGRAMMY SPIKE: The iTunes homepage this morning doubles as a snapshot of the weekend’s events. The rotating display on top leads with “Remembering Whitney Houston,” just above a New & Noteworthy section dominated by albums from Grammy winners and performers. Houston’s “I Will Always Love You” is the #1 single, followed by Adele’s triumvirate of “Rolling in the Deep,” “Set Fire to the Rain” and “Someone Like You”—broken up by #3 fun.’s 2010 track “We Are Young,” which got a boost from last Sunday’s Super Bowl spot for the Chevy Volt—while “I Wanna Dance With Somebody” is #9. The album chart is topped by 21, then Whitney – The Greatest Hits, Coldplay’s Mylo Xyloto, 19, Sinatra: Best of the Best and The Civil Wars’ Barton Hollow—the DIY duo appearing to be the primary beneficiaries of what we’ll call “the Mumford effect,” following their powerfully human if too brief performance of the title song last night. Kelly Clarkson, an Elton John best of, David Guetta and Jason Aldean fill out the Top 10. Coldplay, Sinatra, Clarkson, Elton, Guetta and Aldean are all sale priced at 6.99 for Valentine's Day. (2/13a)