Soon, teammates are chosen by team leaders Bret Michaels and Trace Adkins.

WSJ: Donald Trump returns to the 'Apprentice' boardroom

The first three national anthem singers at the World Series were country artists: "American Idol" winner Scotty McCreery, Trace Adkins and Ronnie Dunn (of the former Brooks and Dunn).

CNN: Obsessions: Crazy about country music