Gene Simmons, Shannon Tweed marry

(CBS/AP) LOS ANGELES - Rocker Gene Simmons and his longtime girlfriend, actress Shannon Tweed, have tied the knot.

Publicist Dawn Miller offered her congratulations to "the new married couple" on Facebook.

Pictures: Celebrity weddings and engagements

People magazine said about 400 guests attended the Saturday evening ceremony outside a Beverly Hills hotel. The magazine reported the couple exchanged vows they wrote themselves.

Simmons and Tweed have been a couple for years. The 62-year-old Kiss bassist and the 54-year-old former Playboy Playmate have two children.

Their engagement announcement last month surprised many fans.

The new season of the reality show "Gene Simmons Family Jewels" premieres Tuesday on the A&E network.