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Reba McEntire is once again throwing her support behind Muhammad Ali's annual Celebrity Fight Night. 

USA Today says the country singer served as the emcee for this year's event, which took place in Phoenix, Arizona Saturday night.  She also brought in a million dollars for the cause with her auction donation of a dinner with her at her home.  Two separate bidders each shelled out $500,000 dollars for the prize. 

Other country stars took part in the event as well.  The Band Perry and Kenny Rogers both performed at the fundraiser. 

Reba sang as well, joining Kenny for the duet "Islands in the Stream." 

The  Celebrity Fight Night fundraiser supports the Muhammad Ali Parkinson Center at St. Joseph's Hospital in Phoenix along with more than a dozen other charities. 

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