In recent years, several "music power couples" have gained a ton of attention.  Many cite Beyonce and Jay-Z as one of the most powerful couples in music.  But, they are only the second most powerful couple in music, according to Billboard.

The most powerful couple in music is Garth Brooks and Trisha Yearwood.  They have been married since 2005.  Between them, Garth and Trisha have sold over 70 million albums.

Other country couples on Billboard's list include Tim McGraw and Faith Hill (#3) and Blake Shelton and Miranda Lambert (#9).