For months now I've needed a feel-good song to belt at the top of my lungs — and my hopes were answered in October when Shawn Mendes released "Wonder." It's a tune you want to scream out of your car ...

Also, not going to lie, I was surprised by how difficult this workout was. I went in thinking, "How hard can it be?" The song is less than four minutes long, and the tempo isn't that fast. But ...