All it took was one song. After the band’s single “Ho Hey,” a bluegrass-infused folk-pop number, was heard on “Hart of Dixie” earlier this year, the Lumineers saw their self-titled debut climb the charts and their shows sell out. The band’s open-hearted melodies and simple acoustic folk sound immediately draw comparisons to bands such Mumford and Sons, the Civil Wars and the Avett Brothers. But the Lumineers have crafted their own style. After wowing Richmond with an appearance at Lewis Ginter Botanical Garden weeks ago, the Lumineers return to perform with Old Crow Medicine Show at Maymont on Wednesday, Aug. 1, at 6:30 p.m. $34-$39. musicatmaymont.com.