Gwyneth Paltrow's Cookbook Tour Style: Hot 'n' Cold

Actress and new cookbook author has been everywhere shilling My Father's Daughter. Which promo outfit is she working best?

What's been cooking in Gwyneth Paltrow's world?

Oh, the actress and new author has just been everywhere lately, shilling her new cookbook My Father's Daughter.

And that, as you know, is a recipe for some delicious—and some not so appetizing—promotional wardrobe changes from this fashionista...

At a book signing at Barnes & Noble, Gwynnie did edgy black leather pants and a bright tank mommed up with a cardigan and ballet flats, while she wore a skintight nude Tom Ford dress and matching stilettos at a surprise appearance at the Good Housekeeping Awards in New York City. Both fails.

But the star redeemed herself in a punchy lemon-yellow frock at a Williams-Sonoma book signing in Beverly Hills along with an adorable white Stella McCartney shift with Sergio Rossi booties at a private book launch bash in the Big Apple. Yum!

Gwyneth's final two ensembles were a questionable navy-blue Vionnet bow dress with two-tone heels at another Williams-Sonoma book signing, along with a head-to-toe neutral look (courtesy of Alexander Wang and Stella McCartney) for a Good Morning America appearance.

Our fave was the star's love-it-or-hate-it not-so-mellow-yellow ensemble, which was gutsy and glam.