Vote: Celebrity Selfie Showdown of the Week — January 15, 2014

The "selfie" has become part of the pop culture lexicon, and for celebrities mastering the art of social media, posting them is part of building their brands. Which is to say, a selfie is just another form of self promotion. So who's doing it best this week? We've scoured Instagram and Twitter to find the contenders for the best selfie in this week's Celebrity Selfie Showdown.

Lady Gaga

Jordin Sparks

The Rock

Shay Mitchell

Paris Hilton

Lena Dunham

Jamie Lynn Spears

Christina Milian

Vanessa Hudgens

Snooki

Jennifer Lopez

VOTE:

• Paris Hilton Rings in the New Year With an Engagement (and a $2 Million Rock)
• 7 Important Life Lessons from Vintage Paris Hilton
• This Paris Hilton Plane Crash Prank Went Way Too Far
• Check Out the Best Celebrity Selfies of the Week
• Vote: Celebrity Selfie Showdown of the Week — October 16, 2014