Megan Fox sizzles in new Giorgio Armani ad

Megan Fox is already smokin' hot *GIRL CRUSH ALERT* so we're not entirely sure why she had to go and up her game to look even more gorgeous, but she does it pretty effortlessly.

Not content with littering her CV with being the face and body of Emporio Armani Underwear, Armani Jeans AND the fragrance Armani Code, Megan is now the flawless face of Giorgio Armani's cosmetics campaign.

Screen siren: Megan adopts at 40s look for the new ads

In the adverts, the 25-year-old's has transcended from modern-day muse to 40s screen siren with her raven-coloured hair curled into voluminous waves, her skin porcelain perfection matched with smouldering dark eyes and deep red lips.

As she flirts with the lens adopting some serious moves that'll make every person on the planet swoon, Megan knows she's got it.

Hollywood honies: Which classic look do you prefer, Megan or Kristen?

But she isn't the first to play with the Hollywood high-octane look…

Earlier this month, Kristen Stewart stole the show on the cover of GQ offering a retro revival with her hair and make-up.

But who do you think wowed most — Kristen or Megan, you decide!