Halsey & Lady Antebellum Just Performed The Most Epic Country/Pop Duet We've Ever Seen At The 2019 CMAs Halsey & Lady Antebellum Deliver Epic Country/Pop Duet At The 2019 CMAsLady Antebellum and Halsey blew audiences away with their magical duet at the 2019 Country Music Association Awards.By Peyton Blakemore