Question: who are the guest coaches on the voice 2019?
Answer: Charlie Puth on Team Adam. Photo by: Trae Patton/NBCPictured: (l-r) Charlie Puth & Adam Levine. ... 
Khalid on Team John. Photo by: Trae Patton/NBCPictured: (l-r) John Legend & Khalid. ... 
Kelsea Ballerini on Team Kelly. ... 
Brooks & Dunn on Team Blake.