When it comes to describing an event or a group of people, the term "star-studded" is commonly used. However, there are many equally effective alternatives to choose from. If you're looking to jazz up your writing, try using phrases like "celebrity-laden," "glamor-filled," "famous-filled," or "stellar assemblage." Other options include "celebrity-studded," "superstar-packed," "A-list exclusive," and "star-strewn." These synonyms all convey the same basic meaning - that the gathering or occasion includes a high number of notable or famous individuals - but each one adds a unique spin that can make your writing more engaging and interesting to read.