02/13/2011 AT 5:00 PM ET
What we re going to do is have a nice romantic dinner and a few cocktails, Lachey, 36, told PEOPLE at the Pre-Grammy Gala and Salute to Industry Icons with Clive Davis Honoring David Geffen, held at the Beverly Hilton.
But does the singer have any special after-dinner plans with his soon-to-be wife?
“We’re going to go home and watch Hawaii Five-0 guest-starring Vanessa Minnillo, he said, laughing.
Walking the red carpet with her man by her side, Minnillo, 30, dished about having Lachey s support for the rest of her life.
All the good stuff feels different [because] you know that you found your partner that s there for you, she explained. But we ve been dating for five years so all the nitpicky stuff is worked out.
We re an old hat now, Lachey added.