Gene Simmons and Shannon Tweed FINALLY tied the knot after nearly three decades of being together and you can catch the ceremony for yourself tonight on ‘Gene Simmons Family Jewels!’

Gene Simmons is doing the one thing he never thought possible: getting married to one woman! The mega rockstar tied the knot with Shannon Tweed earlier this fall, but now we all get to witness the special moment ourselves on Gene Simmons Family Jewels Oct. 18.

In this exclusive sneak peek, Gene explains when it really hit him he was making it all official, “For me, it was real when I was alone in the room in my tux and I was looking at myself. I arched my back and I said, ‘This is real. Today I’m getting married.’”

Be sure to tune in for the special two hour episode, which is called “The Demon Says I Do?”, airs tonight on A&E at 9 p.m. ET.