Pop, fizz, clink!

The time has come to close out 2019 with a bang and celebrate the start of a new decade: 2020! Some of our favorite celebrities are already looking forward to what's ahead and plan to ring in the new year in a special way.

But before the biggest and brightest stars join everyone in the countdown, a few are taking this moment to reflect on the past 12 months. Case in point: Alex Rodriguez shared a sweet tribute to his fiancée, Jennifer Lopez, whom he proposed to in the spring.

"What an amazing year it has been! As 2019 winds down, I am feeling so incredibly grateful and blessed," the 44-year-old star wrote on Instagram, alongside a heart-melting video with his leading lady. "Looking back on these moments, I can't help but smile from ear to ear. I am so lucky to be able to spend my life with those I love, doing what I love. Thank you all for following me around on this wonderful journey. Here's to continued success and happiness in 2020!!!"

And while 2019 was a solid year for some, others didn't quite feel the same way.

Stars Celebrate New Year's Eve

E! Illustration

"2019...I AM SO HAPPY TO SEE YOU LEAVE," Savannah Chrisley shared. "I know many of you look at social media and compare your lives to others that just seem so "perfect." I'm most certainly guilty of that...I'm also guilty of making my life look as perfect as can be."

She added, "I don't show all the bad stuff because I feel like there's this pressure on me to just be perfect. But in 2020 I'm making a promise to not only you but to myself to be more open, raw, honest, and real. I just wanna be ME..."

However, not everyone is taking this time to reflect on their past year. Instead, they're enjoying the moment. Post Malone got a new face tattoo while Miley Cryus got into the festive spirit and donned a "Cheers" headband.

To see how your favorite stars are celebrating the new decade, scroll through our gallery below!

Sofia Vergara, Joe Manganiello, New Year's Eve 2019

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Miley Cyrus, New Year's Eve 2019

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Scott Disick, Mason Disick, New Year's Eve 2019

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Jessie James Decker, Eric Decker, New Year's Eve 2019

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Adam Levine, Behati Prinsloo, New Year's Eve 2019

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Ariana Madix, Tom Sandoval, New Year's Eve 2019

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Katy Perry, Orlando Bloom, New Year's Eve 2019

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Reese Witherspoon, Deacon Phillippe, New Year's Eve 2019

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Savannah Chrisley, Nic Kerdiles, New Years Eve 2019

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Jessica Simpson, New Year's Eve 2019

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Christie Brinkley, Sailor Brinkley, Nina Agdal, New Year's Eve 2019

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Wells Adams, New Year's Eve 2019

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Bethenny Frankel, Paul Bernon, New Year's Eve 2019

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Lindsay Hubbard, Carl Radke, Danielle Olivera, Kyle Cook, Amanda House, New Year's Eve 2019

Tyler Gustin

Melissa Gorga, Joe Gorga, New Year's Eve 2019

Palace Resorts

Joe Jonas, Sophie Turner, New Years Eve 2019

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Drew Barrymore, New Years Eve 2019

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Prince Harry, Archie

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Eva Longoria, New Years Eve 2019

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Jessica Simpson, New Years Eve 2019

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Courteney Cox, Johnny McDaid, New Years Eve 2019

Chrissy Teigen, John Legend, Luna Stephens, Miles Stephens

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Hilaria Baldwin, Alec Baldwin, New Years Eve 2019

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Christina Anstead, Ant Anstead, New Years Eve 2019

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Lena Headey, New Years Eve 2019

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Kylie Jenner, Fashion Police Widget

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Bethenny Frankel, Instagram, New Year's Eve

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Savannah Chrisley, Instagram, New Year's Eve

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Jordyn Woods

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Kate Hudson, Rani Rose, New Years Eve 2019

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Jessica Simpson, Eric Johnson, Ashlee Simpson Ross, Evan Ross, New Years Eve 2019

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Miley Cyrus, New Years Eve 2019

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Jennifer Lopez, Alex Rodriguez, Christmas

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Toni Garrn, Alex Pettyfer

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Post Malone, New Years Eve 2019

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Justin Bieber, Hailey Bieber, New Years Eve 2019

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Carrie Underwood, New Years Eve 2019

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Jade Roper

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2 Chainz, New Year's Eve 2019

Nightingale

Amber Tamblyn, America Ferrera, New Years Eve 2019

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Vanessa Hudgens, New Years Eve 2019 Vacation

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Cheers to 2020!

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