If you need something to brighten up your day, then you’ve come to the right place. The talented girls in the video below will definitely put a smile on your face and elevate your mood. The girls are a part of a quartet that is starting to have increasingly more fans. Ali Hauger, Amanda McNutt, Katie Gilis and Katie MacDonald have a common passion for music, and even though their voices are very different, they harmonize perfectly. But don’t think the girls are not working hard to achieve this impressive result. The young women spend hours rehearsing for a single performance.