See Pop Stars With Their Tongues Out [PHOTOS]

When you're five and playing with other kids in the sandbox, sticking out your tongue is an effectively communicative gesture that can convey brattiness. Fast forward a few years to the age of eight or nine or even 12 and it takes on whole new meaning, as you tend to stick your tongue out at the person you are crushing on. When you are Miley Cyrus , you're tongue can become to topic of national conversation.

With other famous pop stars, sticking out your tongue can be express an assortment of different emotions. It can be perceived as playful, aggressive --especially when the paparazzi are in hot pursuit-- or cute.

We've rounded up candid photos of our favorite pop stars flashing their tongues! It turns out they do so whether they are on stage, performing, posing on red carpets or while being chased by the paps.

Miley Cyrus

Justin Bieber

Avril Lavigne

Kesha

Jessie J

Nicki Minaj

Celine Dion

Jessica Simpson

Madonna

Katy Perry

Azealia Banks

Rihanna

Rihanna...again

Christina Aguilera

Cheryl Cole

Lana Del Rey

The Wanted's Jay McGuiness

Pink

Joss Stone

Ryan Lewis

Rihanna...Threepeat!