Didn't know how good of a singer you are: Selena Gomez

Hey boys and girls! I know it's been a long time since I last wrote here, but now I'm back. Back for good :) Better, faster, stronger. Hope you figured out my musical references I did there. I am going to start a new category on my blog called: Didn't know how good of a singer you are. It's all about those music stars that have a controversial image in the media, but they turn out to be good singers. Today this category hosts Selena Gomez. *She's an actress and a singer. And Justin Bieber's ex girlfriend. She's loved and hated by millions of people. She has 33.2 million followers on Twitter and about 58 million likes on Facebook. And she's only 23 years old. Quite impressive if you ask me. Anyway let's skip to the good bit (as Rizzle Kicks would say) and listen to Selena sing her tune Good for you on BBC Radio 1 Live Lounge (the song starts at 1:23) I believe that kind of song is quite hard to sing and make it sound almost as good as the recorded version, so she did a good job. How would you rate her performance?