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Merle Haggard has a few more well wishers for his birthday this year.  The country legend turned 77 on Sunday, which wasn't forgotten at the Academy of Country Music Awards. 

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During the CBS broadcast, Garth Brooks, George Strait, and Miranda Lambert led the crowd in singing "Happy Birthday" to him. 

But that wasn't the only reason why Haggard was recognized at the event.  He's this year's Crystal Milestone Award recipient, in honor of his lengthy and successful career. 

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Before Brooks encouraged the crowd to acknowledge Hag's birthday, he introduced the tribute performance featuring Lambert and Strait.  After the birthday song, Merle gave a short acceptance, saying country music had been "great" to him all his life.  He also thanked everyone for taking part in one of his "most eventful evenings."  

Congratulations and Happy Birthday to Merle! 

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