Sweet Tart is the beautiful pink shade that has a subtle brightness to it. It gives off a nice sheen. Its glossy and feels very nice on the lips. This shade is fresh and girly. You can make it more intense or put on less for a more subtle effect. I think this is the perfect pink color. They have many more shades, but this is one of my favorites. Price is around $6.
(If you're wondering what I'm wearing on my eyes in the photo, it is MAC Sable eyeshadow.)