In a large mixing bowl, beat the cream cheese with an electric mixer on medium-high speed for 3 minutes or until light and fluffy. Gradually beat in the sugar, 1/2 cup at a time, for 3 minutes or until mixture is completely smooth, scraping sides of bowl occasionally. Reduce speed to medium; beat in the melted chocolate until combined. Beat in coffee liqueur or coffee until smooth. Add eggs all at once; beat on low speed just until combined.