Prior to Wednesday night's show at Planet Hollywood’s Zappos Theater, the "Hey Baby" singer showed off a bouquet full of sunflowers and a sweet card from her beau. The handwritten note said, "You've worked so hard on this show, congrats on opening night!!! I Love You!!! Blake."
Blake was also in attendance for the show after tweeting earlier in the day that he "wouldn't miss this for the world."
Gwen sang songs from her days with No Doubt as well as her solo hits. She even channeled her country singing boyfriend by wearing a cowgirl outfit while singing "Just a Girl."
“I see a lot of admiring eyes on my sparkles. I know, it’s ridiculous,” she told the crowd. “You don’t know what it’s like to wear a cowgirl costume right in front of Blake Shelton. It’s like my fantasy come true.”
Blake better have his party pants on because he'll be spending a lot of time in Vegas — Gwen's residency is set to run through mid-March 2019.