Adam Levine celebrated his birthday on Friday and his wife had an adorable message for him.

The singer's spouse, Behati Prinsloo, took to Instagram for her husband's 37th birthday to tell him how much she cares for him. The picture shows Levine giving his wife a piggy back ride as they look more in love than ever.

In the caption, Prinsloo called Levine the "love of her life," adding that everything feels "boring and meaningless" without him. She finished the caption by calling Levine the "best husband."

 Happy birthday to the love of my life! Everything is boring and meaningless without you!!! #besthusband

A photo posted by Behati Prinsloo Levine (@behatiprinsloo) on Mar 18, 2016 at 3:16pm PDT

At 37-years-old, Levine has a lot going on for him. Not only has he released a ton of popular music and served as a judge on music competition The Voice, but he's been married to a Victoria's Secret model for more than a year and they are reportedly expecting their first child.

According to Hollywood Life, Levine's Voice co-star Blake Shelton, along with his girlfriend Gwen Stefani, want to throw him a big party for his future baby.

"Blake said he wants to throw a baby shower with Gwen," a source revealed. "He was half-joking, but he seems like he wants to be involved and be there for Adam, all jokes aside."

Apparently, Shelton might be hoping to be the baby's godfather if Levine and Prinsloo choose him.

"Blake has already volunteered to be the godfather, so he can show their little one the ropes," the source said.

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Adam Levine, Behati prinsloo