"No Doubt" singer Gwen Stefani's son Zuma, an aspiring country singer, is a lookalike to stepdad and ex-coach of "The Voice" Blake Shelton.

Gwen Stefani celebrated her "sweet and talented" middle son Zuma this week with a special post on social media. Zuma turned 17 on Thursday (Aug. 21), and the proud mom of three boys marked the occasion by sharing a series of photos and a video of her son strumming on a guitar and singing.

The proud mom marked her son's big day with a special look at him over the years, spotlighting his bond with her husband.