Beyonce makes surprise appearance at Country Music Awards

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Pop superstar Beyonce helped celebrate the 50th anniversary of the Country Music Awards' with a secret and boisterous performance of her song ``Daddy Lessons'' with the Dixie Chicks.

Beyonce hit the stage unintroduced when the show was about two-thirds over Wednesday, wearing multiple strands of pearls and a sheer, champagne-colored body-hugging dress. She looked happy and comfortable, dancing and clapping. The performance got a standing ovation.

``Daddy Lessons,'' on her recent album ``Lemonade,'' is as close to a country song that Beyonce's ever released. The Dixie Chicks started covering the song on tour earlier this year.

Not everyone was prepared to welcome Beyonce with open arms. ``Let me have my country music in peace'' wrote one critic on Twitter. Another suggested that whoever had invited her should be fired.