Gene Simmons and Shannon Tweed have said "I do" — again!

After two years of marriage, the KISS rocker renewed his vows to wife Shannon during a destination affair at Haiku Mill in Maui, Hawaii, last week, Life & Style can exclusively confirm.

The French Versailles–style garden wedding, designed by Japanese wedding planner Yoshi Nojiri of Take and Give Needs, featured floral arrangements of thousands of bright wild orchids that adorned crystal chandeliers specifically flown in from Las Vegas for the event. 

"It was gorgeous," a guest tells Life & Style.
After the ceremony, Gene and his bride, who wore Badgley Mischka, continued to celebrate with their closest friends and family — and even treated them to an impromptu concert! 
"Gene and his family jumped onstage with the band — Gene played the bass and his son [Nicholas, 24] and daughter [Sophie, 21] took the mic," says the guest. 
Cameras were rolling at the vow renewal for an upcoming documentary on Nojiri called The Ultimate Wedding Planner, which is being filmed by Sea Star Films and directed by Celia Evans.
Gene, 64, and Shannon, 56, were together for 28 years before tying the knot the first time in Beverly Hills on Oct. 1, 2011.

"Nothing major has changed now that we are married," the musician has said. "The only difference is that I have a ring on my finger now and I call Shannon my wife. I love to stare at both with happiness."

By Jackie Strause / @jackiedstrause