Celebrate Adulthood With These 18th Birthday Instagram Captions

Three people holding pink HBD happy birthday balloons in the air, 18th birthday Instagram captions
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Welcome to the not-so-mythical land of 'adulthood!'

The Best Birthday Instagram Captions to Celebrate Your 18th!

"You are the dancing queen - young and sweet, only..." 18? Soo, that "Mamma Mia" classic might not exactly fit the bill anymore, but you can still dance the night away with our best 18th birthday Instagram caption picks for your upcoming celebration! Be it a big evening soiree, a small gathering with friends, or a nice 'treat yourself' trip to your favorite store, we'll help you make this milestone year one to remember.

So, grab your most frozen ice cream cake and light those candles! Before you make that big wish, though, snap a pic to remember this moment forever on the 'Gram!

(Oh, and, trust us, try your best not to grow up too fast!)

Fun and Classic Birthday Song Lyrics for Your Celebratory Instagram Captions

• "They say it's your birthday / We're gonna have a good time!" – The Beatles "Birthday"

• "Go, shawty / It's your birthday / We gon' party like it's yo birthday." – 50 Cent "In Da Club"

• "It's your birthday you don't have to do nothin'." – Destiny's Child "Birthday"

• "Happy birthday to you / You're still young / Age is just a number / Don't you stop having fun." – New Kids On The Block "Happy Birthday"

• "You're older than you've ever been / And now you're even older." – They Might Be Giants "Older"

• "I know it's gonna be a good day / Oh yeah, today is my birthday!" – Madonna "B-Day Song"

Cute 18th Birthday Instagram Captions for All Your Party Selfies

• I solemnly swear I'm up to great things.

• They said I could be anything... so I guess I turned eighteen!

• Does it feel different to be 18? No. But is it pretty cool? (I'll wish for it to be!)

• Lean, mean, eighteenth-birthday-having machine.

• So long, dancing queen 17. Hello, bigger dreams 18.

• At what age is it acceptable to feel 'old?' (Because it might be this one.)

Inspirational Birthday Quotes for Instagram Captions Throughout Your 18th Year

• "There are two great days in a person's life - the day we are born and the day we discover why." – William Barclay

• "Let us never know what old age is. Let us known the happiness time brings..." – Ausonius

• "Today you are you! That is truer than true! There is no one alive who is you-er than you!" – Dr. Seuss

• "Age is a case of mind over matter. If you don't mind, it don't matter!" – Satchel Paige

• "The way I see it, you should live everyday like it's your birthday." – Paris Hilton

• "My policy on cake is pro having it and pro eating it." – Boris Johnson