Aretha Franklin, who sang at the 2009 inauguration, told ABC, "The weather down there was about 46 or 44 degrees and for most singers, that is just not good singing weather." She added that she'd probably use the method herself the next time.
"The one thing that you cannot doubt is that she can sing. She absolutely can sing," Alicia Keys, also a performer in the ceremonial weekend, told the UK's Capital FM. "All the rest of the 'whys' or 'whatever,' we know that she can deliver and she did deliver that song really beautifully."
Destiny's Child bandmate Michelle Williams cited Whitney Houston's 1991 Super Bowl national anthem performance as a past example of a singer using a pre-recorded track.
"I will say this, it's not the first or the last time that someone has had to lip-sync," she told Entertainment Tonight. "My greatest singer of all time, Whitney Houston, it came to light that her anthem was in fact lip-synced."