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Photos   -  Country Couples' Duets

Muhammad Ali's Celebrity Fight Night XII Trisha Yearwood and Garth Brooks sing onstage at Muhammad Ali's Celebrity Fight Night XII on March 18, 2006.
ACM Awards' Artist of the Decade Miranda Lambert and Blake Shelton perform together at the ACM's Artist of the Decade show on April 6, 2009.
June Carter Cash and Johnny Cash June Carter and Johnny Cash sing together on Jan. 1, 1981.
Mr. and Mrs. Black Clint Black performs a duet with his wife Lisa Hartman Black during the 2nd annual Music City Gives Back Concert on June 5, 2012.
45th Annual Academy Of Country Music Awards Joey and Rory Feek rehearse for the 45th annual ACM Awards on April 15, 2010.
Andre Agassi's Grand Slam for Children Faith Hill and Tim McGraw perform during the Andre Agassi Charitable Foundations 9th annual Grand Slam for Children concert on Oct. 2, 2004.