Simmons, who is also the star of the reality show "Gene Simmons Family Jewels," has dated Shannon Tweed for 28 years.
Best Celebrity Weddings of Gene Simmons and Shannon Tweed
Kiss and Tell: Shannon Tweed, Gene Simmons, Julie McCarron.
Gene Simmons and Shannon Tweed May 5, 2010. Love them.
Gene Simmons and family are back for a sixth season of Family Jewels -- and fans will see the famous rocker and his partner Shannon Tweed air lots of dirty laundry.