When there are so many eyeshadows yet so little time, we need to bring in reinforcements to sort through them all and decipher which ones we truly need in our lives. We went to the MAC Pro store in New York City and called on MAC senior artist Chantel Miller to guide us through the essentials we need to build a custom eyeshadow palette that will work for any occasion. Watch the video to see what colors made the cut, what you'll need for this spring’s trends, and more.