There's another question being raised in the did-she or didn't-she Beyonce lip-sync discussion: Does it matter? Not according to several fellow performers, who are speaking up about the controversy.
Jennifer Lopez appeared on "The Daily Show" to explain why certain performances require pre-taped vocals. "In certain stadiums, in certain venues, they do pre-record things, because you're going to have that terrible 'slapback,'" she said. (Slapback occurs when there's a delay in vocals or instruments, and is sometimes used to great effect -- but live, it can be problematic.)
The technical issues involved in large-venue performances like stadiums exaggerate this effect, which means singers have to make a decision over whether to risk going off-key, echoing or encountering other possible issues. Cold, dry temperatures can also be challenges for vocal cords. When faced with both challenges, even a veteran like Aretha Franklin, who had a few rough spots during her performance at President Obama's first inauguration, can have issues.
And with the national anthem, a difficult song even in ideal situations, other singers have lip-synced, including Whitney Houston, who sang the song at the 1991 Super Bowl.
As Franklin explained, if Beyonce had taken precautions, she shouldn't be blamed for it. "I could certainly understand her pre-recording to assure and guarantee her performance," she said in a phone interview that aired on TODAY.
Everyone from fans to audio engineers has speculated whether or not Beyonce sang live or with some assistance, but likely it was some combination of the two, in the end. Whatever the answer, all eyes -- and ears -- are likely to be trained on her in ten days, when she sings at Super Bowl XLVII.