What happens when Elvis officiates the wedding ceremonies for couples in front of Shake Shack? Well, couples vowed to always be each other’s' "hunka hunka burin' loves," ate Shake Shack's "All Shook Up" concrete afterward and toasted with champagne. The ceremony on Monday evening featured a group vow renewal Stripside at New York-New York with Elvis impersonator Harry Shahoian officiating. One bride even had a bouquet made from Shake Shack tray liners and bags. All was a tip of the hat to the King of Rock 'n' Roll’s death 38 years ago on Aug. 16.