What is the typical fill ingredient in a Melon Ball cocktail?

In a Melon Ball cocktail, orange juice is typically used as the fill ingredient. This vibrant drink is known for its refreshing and fruity flavors, predominantly derived from melon liqueur and vodka, which are complemented by the sweet and tangy profile of orange juice. The inclusion of orange juice not only enhances the overall taste but also contributes to the cocktail's visually appealing, bright color, making it an inviting choice for many bartenders and cocktail enthusiasts. While other juices or mixers might be delicious in different contexts, orange juice is quintessential for creating the authentic Melon Ball experience.