No microphone. No effects.

Beyoncé - 1+1 !

"Here’s a Video Jay-Z Recorded of Beyoncé Backstage at Idol

Says "Andy WarHOV" in a Life+Times post under Jay-Z's blogging byline: "This is the dressing room rehearsal for American Idol. NO MICROPHONE. No effects." And she sounds amazing. Now, can someone just teach Jay to hold the phone horizontally?"

...mind blowing!!