First off, let me report that Lil’ Wayne — who was previously not seen in my last Grammy rehearsal post — did in fact show up on Thursday, and his tardiness was apparently due less to him being on hip-hop time and more to L.A. traffic. (It’s been raining pretty steadily here, and everyone gets all confused when that happens.) Due to a variety of scheduling conflicts of my own, I was only at Staples for a couple hours on Friday, but that was enough time to catch a few run-throughs of Katy Perry’s “I Kissed a Girl” production number, a Sapphic, dancey thing that comes complete with YouTube videos of fans singing along (in a twist on the “My Grammy Moment” contest), and one big reveal that I’ll not spoil, though it’s something she’s done at least once before. I also picked up some gossip on the shattering, explosive F/X involved in what the always post-apocalyptic Rihanna’s got planned. But the real reason I was there can be seen below: A chance to talk to country superstar Kenny Chesney, who’ll be performing a simple and lovely version of “Better as a Memory” on the broadcast. Fun fact about that song: It was pseudonymically written by his publicist, Holly Gleason, who you’ll see at the very start of the video. That’s a good publicist. Roll tape!