Valentine's Day is fast approaching and in spirit of the lover's holiday, let's talk lipstick marks. You might recall John Mayer once bedecked himself out in kiss marks as part of a prank a few years back, and even Justin Bieber covers this month's Vanity Fair swathed in red lipstick marks, but can you guess which other stars have been spotted wearing (or giving) a colorful smooch? Take my quiz now to find out.

1 of 6
Guess who pointed out her lipstick mark? (With a very cool black and white checkered manicure, I might add.)
Alicia Keys
Gabrielle Union
Beyoncé Knowles
2 of 6
Guess who showed off her lipstick mark tattoo while waving to her fans?
Mena Suvari
Britney Spears
Scarlett Johansson
Hayden Panettiere
3 of 6
Guess who wore her heart on her sleeve, er, lipstick on her shirt?
Zoe Saldana
Thandie Newton
Jada Pinkett Smith
Keke Palmer
4 of 6
Guess who puckered up for Nick Cannon back in 2007? It wasn't Mariah Carey.
Mandy Moore
Leighton Meester
Adriana Lima
Minka Kelly
5 of 6
Guess who gave director David Lynch that lipstick mark on the right side of his cheek? Hint: the year was 2001.
Sherilyn Fenn
Lara Flynn Boyle
Naomi Watts
Isabella Rossellini
6 of 6
In lieu of actually wearing a lipstick mark, which actress chose to carry one in sparkly clutch form?
Zooey Deschanel
Helena Bonham Carter
Drew Barrymore
Manicure Trends from Critics' Choice Awards 2011-01-14 20:23:49
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Guess Whose Manicure This Is!