View the original article at: http://www.nationalenquirer.com/celebrity/bruce-die-hard-party-guy
Aging bad boy Bruce Willis showed the kids how to party when he celebrated his 52nd birthday with a three-day bash.
The blowout started in Las Vegas and ended in Los Angeles — and the guests included rocker Cisco Adler and three stars from "Grey's Anatomy."
To celebrate the big day on March 19, Team Willis flew into Las Vegas and partied at the Planet Hollywood casino, where they ate cake and drank champagne while playing blackjack and shooting craps.
Forty-eight hours later, the party was still going strong back in L.A., where Bruce and crew swept into Hollywood's The Roxy to hear Amy Winehouse in concert.
Among the partiers were "Grey's Anatomy" stars Kate Walsh, Sara Ramirez and Justin Chambers.
By ROBIN MIZRAHI