Fergie and Josh Duhamel will have a star-studded baby shower on Sunday in L.A. and unlike most people, they plan on inviting both females and males.  

According to E! News, the guest list includes everyone from actors and singers to designers and reality stars.

Actors include Kate Hudson, Julianne Hough, Neil Patrick Harris (and his partner David Burtka), Zachary Quinto and Jesse Tyler Ferguson. Singers include Cher, Elton John, Adam Lambert and of course, the Black Eyed Peas. Designers Brian Atwood and Marc Jacobs are on the list as well as the Osbournes, Nicole Richie, Molly Sims and Kim Kardashian.

Fergie's agent Sean Patterson is involved with the planning and has teamed up with DSquared2 designers Dean and Dan Caten to give the baby shower a trendy twist.

Last week on Live! With Kelly and Michael, the 40-year-old Transformers star revealed the sex of the baby during the "Du or Don't" game. When choosing between a pink and a blue baby onesie, Duhamel chose the blue, revealing his wife is having a baby boy.

The 38-year-old singer is expected to give birth in September. As far as names go, the Hollywood couple are keeping it a secret. 

"Some people may not like it, some people may think it's really cool, but we don't really care - that's why we're not telling anybody," Duhamel told People magazine. "It's between us- it's a sacred thing...[It's] kind of traditional, kind of not." 

Fergie and Duhamel were seen moving boxes into their new mansion on Monday in Brentwood, CA. 

Tags: Fergie Josh Duhamel