Happy Birthday, Kaiser!

Teen Mom 2 star Jenelle Evans took to Instagram Thursday to post a Snapchat photo of her adorable secondborn on his birthday.

The proud mama said, "Happy Birthday to Kaiser! He's turning three today!"

So sweet!

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The toddler — and Nathan Griffith's lookalike — makes regular appearances on Jenelle's Instagram and is going to start taking dance lessons!

On Tuesday, the reality star tweeted, "Kaiser starts hippity-hop (dance) classes next week with Maryssa! He wanted to dance in there soooo bad with her last night."

This isn't the first time Kaiser has shown an interest in dance. In 2015, he was seen dancing in his high chair to a rap song while munching on what appear to be crackers.

After battling a drug addiction — during which she later admitted to "shooting up four or five times a day" — Jenelle now seems to be in a good place.

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The 25-year-old is spending more time with her sons Jace, 7, with ex Andrew Lewis, son Kaiser, 2, with ex-fiancé Nathan, and daughter Ensley, five months, with current fiancé David Eason.

Plus, she even wrote a book — so proud of you, Jenelle!

Teen Mom 2 returns Monday, July 17 at 9 p.m. EST on MTV.

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Scroll through our gallery below for sweet photos of Jenelle and Kaiser!