We’ve seen them: the Scarlett Johanssens, the Michelle Obamas of the world, and we covet.

Chances are that the signature behind a look is the lip color: after all, who doesn’t notice Gwen Stefani or Lady Gaga’s pout?

Here is our SWAK Gift Guide for you (yes, we have gone to all the trouble of getting you the exact swatch and shade to replicate Screen Siren style):

Michelle Obama:

The first lady certainly varies up the lip shade, but we found something similar you can try at home:

Rihanna’s pale ashen rose color from December’s Glamour Magazine cover caught our eye. We recreated it below:

This color is L’Oreal’s Infallible lipcolor in Teaberry. $11.99 at drugstores.

Brigitte Bardot’s bombshell lips are usually coated in pale, creamy shades.

Here we used Lancome Color Design Lipstick in “Pale Lip” to achieve her iconic look. $22 sephora.com

Scarlet Johansson looks equally gorgeous in a red lip or a pale shade.

Here we used Stila Shine Lipcolor in “Sarah” to achieve her D&G Makeup look. $22 lancome.com

Gwen Stefani’s punk rock lips are usually coated in a shade of red.

Here we used Clinique High Impact Lip Colour in “After Party” to achieve her brick red lip. $14 clinique.com

Maybelline Mineral Lipstick in Plum Wine ($7.55 at drugstores) mimics Anne Hathaway’s magnificence with a deep lilac rose shade.

To get Kristen Stewart’s just bitten look, swipe on Korres Lip Butter in Wild Rose ($9 at sephora.com.) Brooding vampire sold separately.

Tap into Joan Crawford’s powerful persona in Mildred Pierce by dabbing on her no-nonsense brown shade of career-ready lipstick. YSL Rouge Volupte in Legendary Mocha ($34 at sephora.com.)