By Vernell Hackett NASHVILLE, Tennessee (Reuters) - George Strait won the coveted entertainer of the year prize at the Country Music Association awards on Wednesday, while Blake Shelton took home the album of the year and male vocalist of the year awards. Strait, 61, won the top prize for the third time and for the first time since 1990. Strait, who has said he will retire from touring next year, has won 17 CMA awards. Shelton, Taylor Swift, Jason Aldean and Luke Bryan were also nominated for entertainer of the year.