Riley Green made his coaching debut on 'The Voice' during Season 30's premiere, securing a 7.8 million viewership and forming a bond with contestant Allie Rae using the first-in button. The show featured performances by country artists Kayleigh Mathews and Riley Green, who also duetted with contestant Isabella Juliet, while other episodes included a return by a contestant from 15 years prior and a cover of a Black Sabbath song.