Gene Simmons Family Jewels Gene Simmons and longtime girlfriend Shannon Tweed get married 10/02/2011 Gene Simmons has formally married longtime girlfriend Shannon Tweed in Beverly Hills, Calif., his publicist confirmed. Read More RELATED NEWS Gene Simmons announces $2,000-and-up 'The Vault' solo collectionGene Simmons' daughter Sophie Simmons calls out Katey Sagal over affair with dadGene Simmons takes a fall during Kiss concert TAGS: Gene Simmons Shannon Tweed