Blake Shelton has sung with some of the most famous music stars around the globe but nothing could have prepared his fans for his latest duet.
The country music sensation was performing in Oklahoma on 30 January when he invited six-year-old, Wyatt McKee, up on stage with him.
MORE: Blake Shelton makes rare statement about being stepfather to Gwen Stefani's children In an emotional moment, which has since been shared across social media, the little boy then held up a sign which read: "Your smallest, biggest fan from Lake Texoma, 6 years old waiting on a heart transplant."WATCH: Blake Shelton opens up about his greatest gigBlake reacted by reminding the crowd: "Think y'all are having a bad day?
Put that in perspective right there, man."Wyatt asked if he could sing a rendition of God's Country with Blake, and the stepfather-of-three happily obliged.
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