March 21, 2016 11:26 AM

Leo Marinho/Splash News Online

Adam Levine celebrated his 37th birthday on Friday, and he brought his sweet tooth in tow.

Rather than the big blowout you might expect from a pop star of his caliber, the Maroon 5 frontman spent the day with quiet solo reflection — and a cake all to himself.

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“For my birthday yesterday I sat in bed all day with the shades drawn eating this cake completely alone,” he captioned an Instagram shot of the half-eaten confection (and a two-tiered platter of chocolate truffles on the side, we couldn’t help but notice).

But before you go feeling sorry for the guy, it was exactly what he wanted. “It might have been the best birthday I’ve ever had,” he continued. “I took time to reflect on so much and had a moment to genuinely appreciate the life that I have and the incredible people I have in it.”

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“I highly recommend taking at least one birthday in your life and keeping it to yourself.” he advised. “It f——in RULED. And that cake was GOOD.”

The singer, who is currently on tour in Brazil, did get some love on his big day — his fellow Voice coaches shared a video exclusively with PEOPLE wishing him the happiest of birthdays.

Shay Spence, @chezspence

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