Why Country Music Association Award for Female Vocalist of the Year and Country Music Association Award for Male Vocalist of the Year are similar

The 50th Annual Country Music Association Awards, commonly known as CMA 50 or the 50th CMA Awards, were held on November 2, 2016 at the Bridgestone Arena in Nashville. The ceremony recognizes some of the best country music released during the eligibility period (between July 1, 2015 and July 20, 2016 ). Wikipedia

Hosted for the final time by CMA Award winners Brad Paisley and Carrie Underwood. The nominations for the 52nd CMA Awards were announced on August 28, 2018, on Good Morning America by Luke Bryan, Dan + Shay and Sugarland. Wikipedia

The 53rd Annual Country Music Association Awards were held on November 13, 2019 at Bridgestone Arena in Nashville, Tennessee. The ceremony recognizes some of the best country music released during the eligibility period. Wikipedia

Held on November 8, 2017, at the Bridgestone Arena in Nashville, Tennessee and was hosted by CMA Award winners Brad Paisley and Carrie Underwood. The nominations were announced on September 4, 2017, on Good Morning America by Lauren Alaina, Dustin Lynch, and Brothers Osborne. Wikipedia

Held on Wednesday, November 11, 2020, at the Music City Center in Nashville, Tennessee and was hosted by CMA Award winners Reba McEntire and Darius Rucker Second African-American male to co-host the award show after Charley Pride, who co-hosted the 1975 ceremony. Wikipedia

The Country Music Association Awards, also known as the CMA Awards or CMAs, are presented to country music artists and broadcasters to recognize outstanding achievement in the country music industry. The televised annual presentation ceremony features performances and award presentations by popular country music artists, with occasional appearances from pop and rock artists. Wikipedia