Gene Simmons and Shannon Tweed
10/04/2011 AT 03:00 PM EDT
10/04/2011 AT 11:10 AM EDT
Talk about a wedding fit for a rock star!
"It was a giant jam session," Shannon Tweed-Simmons tells PEOPLE about her Oct. 1 wedding
to KISS bassist Gene Simmons.
The couple, who have been together for 28 years, celebrated with 400 guests
. Among them were daughter Sophie, 19, who served as maid of honor and even crooned the song for the first dance, Etta James's "At Last," and son Nick, 22, a groomsmen who also took the stage to perform.
Even the family dog, Snippy, joined in the celebration – serving as the ring bearer.
The splashy event at the Beverly Hills Hotel meant all the more to the bride and groom after what has been a difficult year, as documented on their A&E reality show Gene Simmons Family Jewels
. (Its new season premieres Oct. 4.)
One major sticking point was Simmons's hesitations about marriage.
Clearly, though, all that is in the past. "It was a great evening of music and fun," Simmons told PEOPLE about last Saturday's ceremony. "I look at my wedding band and think, 'What was I afraid of all this time?' "