Cyndi Lauper performed America's National Anthem live on television over the weekend during the US Open semi-finals, but mixed up the song's lyrics. 

The 'True Colors' superstar appeared to suffer the same fate as Christina Aguilera, who flubbed the words during the same part earlier this year, as she sang "O'er the ramparts, we watched as our flag was still streaming," instead of "O'er the ramparts we watch'd were so gallantly streaming."

She took to social networking site Twitter after her rendition of the anthem to explain her embarrassing mix up and wrote: 

"Whew, I just did the anthem for the US open. It was an awesome experience.I got choked up in the middle remembering 9/11. The moon shone done on us and I tried to say a prayer at the same time.. I hope I didn't mess up too bad. I wanted it to be comforting. Xcyn"

Watch her performance of 'The Star-Spangled Banner' here: