Beyonce Did Not (Really) Lip Synch

Do not, and I mean do not question Queen Bey.

Do not, and I mean do not question Queen Bey. Moments ago Beyonce gave a press conference in which she walked into the presser told everyone to stand and then belted out the National Anthem acapella.

She then took questions from the corp, and admitted she sang with her own pre-recorded track. Is or is that not lip syncing?