He's just six weeks old and already Camden John Lachey is ready for his first Halloween. While the infant isn't going to don adorable athletic Halloween gear to root for dad Nick Lachey's beloved sports teams on Oct. 31, he'll have a look that's just as cute: Stars Wars' Yoda.

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"We're thinking of a Star Wars theme: I'm going to be Han Solo, Vanessa will be Princess Leia, the baby will be Yoda, and our dog is going to be a Wookiee," proud papa Lachey tells Rachael Ray in a pre-Halloween interview airing Oct. 29. The only character missing from the family's ensemble? Luke Skywalker! "Maybe I'll make [brother] Drew be [that character]," Lachey hints.

Welcoming Camden on Sept. 12, Lachey, 38, tells Ray that he relishes the first-time daddy duties -- and dirty diapers! -- that come along with having a newborn.

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"The sleep deprivation and all the stuff that people warn you about, [I was] so ready to do it, because it's your first-born. I'm not scared of that kind of stuff," Lachey tells Ray. "I'm in there changing diapers, and anything I can do to help out be a part of this whole thing, because they don't stay this [age]forever. I want to take every moment and really appreciate it."

Married to wife Vanessa, 31, since July 2011, the former 98 Degrees singer has developed a new appreciation for the Wipeout hostess since she gave birth to Camden.

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"Motherhood really suits her," Lachey enthuses of his bride. "The last three weeks [of her pregnancy] she started to get pretty antsy . . . but she was of the sexiest pregnant women I've ever seen. "The whole experience was really good," he adds of pregnancy, "It makes me think we have to do it again!"

This article originally appeared on Usmagazine.com: Nick Lachey: Camden May Dress as Yoda for Family Star Wars Halloween Costume