Garth Brooks fans have come to expect a showstopping performance from the singer, but at his Minneapolis show on Friday night, one fan in particular got much more than that.

Teresa Shaw, a mom who’s been battling stage 3 breast cancer since June, caught the singer’s attention when she stood in front of the stage and held up a sign that read “Chemo this morning. Garth tonight. Enjoying ‘The Dance.’ ” Brooks, who lost both his mother and sister to cancer, then began to serenade Shaw with his iconic hit and after the song ended, traded her his guitar for her sign.

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“You have all of my strength. You have everybody’s strength in here. And you go kick cancer’s ass!” Brooks told Shaw as the emotional crowd looked on.

“If I’m ever down, I can go to it and think about that night,” Shaw, who traveled to the show from Iowa with her daughter Elizabeth, told local news station KARE-11 on Saturday of the precious gift she got from Brooks.

“It’s a reminder to all of us,” Brooks, 52, told reporters after the show. “We can think, ‘Oh my God, two shows on Friday, two shows on Saturday ‘ Well she goes through chemo in the morning and comes to the show at night – nothing’s hard after that. That puts it all in perspective.”

See the video of Brooks’s serenade here (scroll to 2:10 to watch the emotional moment play out):

Brooks’s new album Man Against Machine is out Tuesday, Nov. 11.

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