Ariana Grande did something really smart a couple of nights ago on Jimmy Fallon’s “Tonight Show.” Instead of singing one of pre-fabbed songs from her album, she pulled out an “extra” track that few have heard before. “Give it Away (Jason’s Song) is written by Broadway composer Jason Robert Brown. He played piano with the band. This is without a doubt the best thing this young woman has done so far. She also sang jazz on “SNL” this year, and killed it. After the Tonight show. she Tweeted that this is what her voice is for. She’s damn right. She could be an actual artist if she goes in this direction. Exciting.