"What Do You Mean" Justin Bieber is 25?!

It's true, the superstar singer is ringing in his quarter century. He's accomplished a lot in his 25 years including number one singles, a Grammy and even getting married to the love of his life -- Hailey Baldwin.

We hope Bieber feels the love on his birthday, so we're bringing back the top 25 most romantic Instagram posts from the Biebers throughout the years.

Happy birthday, Justin! We're so happy you made Hailey "One Less Lonely Girl."

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25 sure looks good on u lover.. ??

A post shared by Hailey Rhode Bieber (@haileybieber) on Mar 1, 2019 at 1:34pm PST

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hey baby... @voguemagazine

A post shared by Hailey Rhode Bieber (@haileybieber) on Feb 7, 2019 at 8:38am PST

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very thankful ??

A post shared by Hailey Rhode Bieber (@haileybieber) on Nov 23, 2018 at 10:10am PST

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absolute best friend.

A post shared by Hailey Rhode Bieber (@haileybieber) on Aug 19, 2018 at 3:20pm PDT

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My wife is awesome

A post shared by Justin Bieber (@justinbieber) on Nov 15, 2018 at 9:43am PST

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Hunny buns punkin

A post shared by Justin Bieber (@justinbieber) on Nov 10, 2018 at 12:12am PST

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I'll take that

A post shared by Justin Bieber (@justinbieber) on Dec 28, 2015 at 1:05pm PST

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??

A post shared by Justin Bieber (@justinbieber) on Feb 8, 2019 at 11:43am PST

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Hails

A post shared by Justin Bieber (@justinbieber) on Oct 8, 2015 at 2:13pm PDT

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#happynewyear

A post shared by Justin Bieber (@justinbieber) on Dec 31, 2014 at 11:29am PST

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Nyc with the clown posse

A post shared by Justin Bieber (@justinbieber) on Nov 29, 2014 at 2:43pm PST

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The one and only @haileybaldwin

A post shared by Justin Bieber (@justinbieber) on Jun 14, 2015 at 2:06pm PDT