But Kathy Griffin has stolen many of the headlines from these performers, not by belting out any notes... but by undoing her belt, along with other items of clothing.
Indeed, the comedian co-hosted CNN's Time Square coverage alongside Anderson Cooper and shed most of her layers while the camera was capturing the crystal ball, confetti and thousands of revelers. When it returned, viewers were treated to the following awkward sight:
"Are you freaking kidding me?" Cooper asked, trying to stifle the sort of laughter that engulfed him a few weeks ago on live TV.
"I have a no-apology policy," Griffin told CBS news hours after the broadcast. "No apologies for jokes. I apologize in my real life all the time. I say ridiculous things, I make mistakes constantly... But when I'm on stage, I'm at a microphone... it's a joke!"