Gwen Stefani took toInstagramover the weekend to share a sweet birthday message for her youngest son, Apollo.

The singer simply wrote as a caption, “happy b day bday boy!!”

She also included a selfie with the 7-year-old (viaPeople).

close up of Gwen Stefani

Another complimented the mom of three, “love his hair just like my little boys.”

Many fans noticed that Stefani was not wearing her trademark red lip, with one saying, “Gwen !

The natural look is GORGEOUS.”

Gwen Stefani poses with her son Apollo

Many other commenters agreed that less was more with the star’s appearance.

Natural hair, natural beauty.