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Preheat oven to 350 degrees F.
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In a large bowl, cream together butter and sugar. Add eggs, one at a time, and beat for one minute more.
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In a medium bowl, combine flour, and baking soda. Alternate adding flour mixture and soda to butter mixture. Mix until well blended. Add orange zest and vanilla; stir to combine.
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Pour batter into lined muffin tin cups to fill each cup 3/4 full.
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Bake for 13 to 15 minutes, or until a toothpick inserted in the center comes out clean. Cool cupcakes completely.
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Meanwhile, make frosting. Beat butter until fluffy. Add in Orange Crush and orange juice; mix to combine. Add powdered sugar, 1 cup at a time, mixing after each addition. If you like your frosting thicker, add more powdered sugar.
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When cupcakes are completely cooled, frost and enjoy!