Confetti Cupcakes with Pink Strawberry Buttercream Frosting recipe

Confetti Cupcakes
Ingredients:
1 box white cake mix (I used a 16.25 oz Duncan Hines cake mix)
4 egg whites
1/4 cup oil
3/4 cup milk (I used 1%)
3/4 cup sour cream (I used light)
2 teaspoons vanilla extract
1/2 cup jimmies or sprinkles (whatever color you want)