If you thought Beyoncé completely slayed during her first-ever CMAs appearance on Wednesday night, you're not alone. While there were quite a few stars singing along during her performance with the Dixie Chicks, the best reaction had to be from Matthew McConaughey. The actor was feeling the beat as the singer crooned her Lemonade hit "Daddy Lessons" with the country girl group. While his wife, Camila Alves, clapped along with the audience, the actor channeled his The Wolf of Wall Street character as he beat on his chest. See the whole thing at the :34 mark in the video above.