Jennifer Lopez  grauman's chinese theatre hollywood red carpet Cameron Diaz grauman's chinese theatre hollywood red carpet Brooklyn Decker grauman's chinese theatre hollywood red carpet

What WE expect is for these ladies to look perfect ... and they certainly do!

Jennifer Lopez, Cameron Diaz and Brooklyn Decker were decked out to the nines while they worked the red carpet at the premiere for their new movie What To Expect When You're Expecting.

We have to admit that JLo really put Cam's dress to shame. The sexy 42-year-old Latina sizzled in a floor length and flowy Maria Lucia Hohan Gown. She paired her dress with Sergio Rossi shoes and jewelry by Jacqueline Nerguizian.

Ms. Diaz played it safe in a short and semi-sheer black knitted dress ... showing off her incredibly sexy bod. Cute, but a little too understated if you ask us.

Brooklyn Decker chose a Giambatista Valli dress and jewelry by Blue Nile jewels. The perfect choice, indeed!

See all of the stars who hit the red carpet in our gallery below.