Stole the show. Zach Bryan finished his run in Tulsa, Oklahoma, packing out the BOK Center for three incredible nights. Some fans might still be unsure of how to feel about ZB after the drama surrounding his split from Brianna Chickenfry. Still, if you were a mega fan before that news, the video clips from Tulsa should remind those fans of his incredible artistry. Zach Bryan gave it his all for his hometown before his last two shows of the year in Brooklyn later this week. Zach Bryan pulled out all of the stops, including performing his beloved track "Boys Of Faith," which he does not often perform. On top of that performance during the final show, the crowd from one of the earlier shows also got a huge treat. Zach Bryan brought up a fan to help him on the female portion of "I Remember Everything." After spotting a fan's sign, he invited a young woman, Crystaline Mahoney, to join him for the song. Crystaline Mohoney STOLE the show with her vocals during the performance. She channeled her inner Kacey Musgraves and laid down a stellar vocal performance without in-ears, which is even more impressive for a venue that size. She's since gone viral from the performance and noted that thanks to the encouragement of her friends and family, she held up her sign, which led to this incredible moment. "Everything that led up to this moment was God having His hand in my life. I prayed all week, all day and night. I had friends and family praying for me... When it came moment to throw up that sign, I didn't even want to, but God sent an angel who encouraged me and held it up for me! I love everyone that helped and surrounded me and all the encouraging words. I love you, Tulsa; thank you, Zach." @crystalinemahoney everything that lead up to this moment was God having His hand in my life. I prayed all week, all day and night. I had friends and family praying for me. lmk if you wanna know how we got him to see my sign? when it came moment to throw up that sign I didnt even want to, but God sent an angel who encouraged me and held it up for me! I love everyone that helped and surrounded me and all the encouraging words. I love you Tulsa, Thank you Zach. All Glory be to Him! IN THE HIGHEST #zachbryan #tulsa #onstage #Godisgood #insane #stillprocessing #dreamcometrue #bokcenter ♬ original sound - Crystaline Mahoney Before coming in for the female vocal portion of the the Gramm-Award-winning single, Crystaline noted that Zach Bryan was coaching her through when to come in and was also giving her words of encouragement that she was going to do a great job. "He was just saying, 'Not yet.' I almost went in too early and basically was saying, “You’re gonna kill it,” and 'You got it' and stuff!" She not only impressed the crowd but also left Zach Bryan in awe. By the end of the performance, his face was beaming, and he looked like a proud father who had just watched their kiddo win their first Little League championship. This is hands down the best fan performance from the Quittin' Time Tour. Check out another video of the performance from closer to the stage. @taratakeiteazy Zach Bryan brought this beauty on stage & she SANG!!! ❤️❤️#zachbryanmusic #zachbryan #tulsaoklahoma ♬ original sound - Tara Check out some of the praise left by other fans on the viral post. "Zach’s face lighting up every time he has a fan onstage makes my heart so happy." "Can never hate this man." "He was so proud, too." "Okay, I actually love watching all of these because ZB actually looks so encouraging and proud of the person." "That was amazing; she has a really good voice." "Why did I tear up." "I just love it when things like this happen, and it’s on video. GET THIS GIRL A RECORD CONTRACT." "You can see that Zach was like, wow!" "Wow!!!! Beautiful singer! I would’ve passed out, hahaha." Talk about a moment she'll never forget.