Adrian Grenier Gets Buck Naked to Celebrate His 40th Birthday | Entertainment Tonight arrow-left-mobilearrow leftarrow-right-mobilearrow rightGroup 7Gallery Icon Copy 2Video Play Button Copy 5Hamburger MenuInstagramTwitterYoutubeShare Button7C858890-6955-48EA-B871-66CE1E33590CVideo-Playbutton Copy Skip to main contentncG1vNJzZmivp6x7psDOp6OippVjsLC5jqecsKtfZoZzhZVylpqcop6ur6vGq5ynoZWnrLS0zrCqmKeWm6yptdKYmaicqZSvuqvGnqutoZ6crKS7zKmjnqyVocagusCknJ2Xn6OsqbXSmJmiqqSdsaLF