Credit: STILL

Despite the fact that The Voice 2013 is on two (and next week three) times a week, we never can get enough of the crazy coaches and impressive talent.

Luckily, NBC likes to share behind-the-scenes footage of our favorites, and this week’s clip is especially hilarious.

Poor Shakira with all of her motherly hormones and rotating hips. Going into the knockout rounds, she was terrified of letting some of her talented hopefuls go. Unfortunately she relayed that fear to joker Adam Levine.

And Shak wasn’t the only new coach feeling the heat. We saw some of Usher’s unusual rehearsal with pop rock singer Michelle Chamuel in this week’s episode, but in this clip we get to see even more of the R&B superstar’s workout session.

Usher doing pushups? What a fabulous Friday treat!

What the clip and tell us what you think below!