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

Pacific Coast News

Justin Bieber

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Avril Lavigne

Ethan Miller, Getty Images

Kesha

Astrid Stawiarz, Getty Images

Jessie J

Ian Gavan, Getty Images

Nicki Minaj

Jason Merritt, Getty Images

Celine Dion

Ethan Miller, Getty Images

Jessica Simpson

Jason Merritt, Getty Images

Madonna

Jason Merritt, Getty Images

Katy Perry

Ian Gavan, Getty Images

Azealia Banks

Frazer Harrison, Getty Images

Rihanna

Stuart C. Wilson, Getty Images

Rihanna...again

Jason Merritt, Getty Images

Christina Aguilera

Ethan Miller, Getty Images

Cheryl Cole

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Lana Del Rey

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The Wanted's Jay McGuiness

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Pink

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Joss Stone

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Ryan Lewis

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Rihanna...Threepeat!

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