Kingston Rossdale face swaps with Blake Shelton in a new Snapchat video. Credit: Snapchat

Blake’s No. 1 fan! Gwen Stefani’s eldest son, Kingston Rossdale, took over his mom’s Snapchat account on Saturday, July 23, to share a series of hilarious videos inspired by the “Misery” singer’s beau, Blake Shelton.

Kingston, 10, played around with the social media app’s countless fun-filled filters during his takeover on Saturday night, including the fan favorite face swap.

The showbiz scion — who is the oldest son of Stefani, 46, and her ex-husband, Gavin Rossdale — swapped faces with Shelton, 40, while singing the country crooner’s 2011 hit “God Gave Me You.”

Since Us Weekly exclusively revealed in November 2015 that the No Doubt frontwoman and the Voice coach were dating, Shelton has become somewhat of a stepfather figure in Stefani’s three sons’ lives. (She is also mom of Zuma, 7, and Apollo, 2.)

In May, the couple took Kingston and Zuma to the premiere of The Angry Birds Movie, which Shelton starred in. And last month, the “Hollaback Girl” songstress celebrated Kingston’s 10th birthday at her boyfriend’s concert at the Indianapolis 500, where her adorable son sang along to yet another of the country songwriter’s hits, “Sure Be Cool If You Did.”

Earlier this week, Stefani opened up about the moment she found out Shelton was divorcing his wife of four years, Miranda Lambert, last summer.

“From the outside, he [looked] so happy and all those things,” she recalled of her Voice costar during a July 20 interview on SiriusXM’s The Howard Stern Show. “I think I might have went white [when he told me] and, like, shook. I was in shock, because it felt like he was exposing me.”

As fans know, Shelton and Lambert, 32, announced their divorce in July 2015. A month later, Stefani and Rossdale, 50, called it quits after 13 years of marriage. Weeks later, Us Weekly revealed that the Bush rocker was cheating on his then-wife with their sons’ nanny Mindy Mann.

Can't get enough of Us? Sign up now for the Us Weekly newsletter packed with the latest celeb news, hot pics and more!