She did fine, and most of all she did her own original rendition that wasn't a wannabe Whitney 1991 rendition, something that so many female singers try to do, but fail.
Alicia and Beyonce representing this generation of talented female artists
She was good. Like I said, she did what she could with it in a way that didn't show her vocal limitations. Much better than last year's or the year before.
She did fine. Yes, not all notes were perfect... but I heard WAY more sincerity and emotion than Beyonce's inauguration performance and live press conference performance. However, still:
Beyonce @ Super Bowl 2004 > Alicia @ Super Bowl 2013 >>>>>>> Beyonce @ inauguration >>>>>>>>>>>>>>>>>>>>>>>>>> Beyonce @ press conference.