Reyna Roberts believes Beyonce has helped to raise the profile of black country artists. The 42-year-old singer released her country-influenced album, ‘Cowboy Carter’, in March, and Reyna has praised Beyonce for changing attitudes in the country music sphere. Reyna – who features on ‘Cowboy Carter’ – told Us Weekly: “I’m so grateful that she’s in this space and that she’s also allowed other country artists, like me, to be on the album because a lot of people don’t know about black people in country music. And just the fact that it took her bringing us up to the top to even be actually acknowle…