Beyonce hasn't given much away about her performance at half time during Sunday's Super Bowl - other than promising she'll be singing live. The singer admitted miming at Barack Obama's inauguration because she hadn't been able to rehearse properly.
She says there won't be a repeat of that in New Orleans during the game between the Baltimore Ravens and San Francisco 49ers.
As Beyonce makes final preparations, a clip has appeared online of one other thing she should avoid doing - handing the microphone to the crowd and asking them to sing along.
As a past performance proved, that can mean the song falls rather flat.
More top news
Choir wins public vote, while judges pick dancers ahead of 12-year-old singer-songwriter Henry Gallagher.
The hunt for murder suspect Jed Allen has ended after police found his body two days after discovering his mother, stepdad and sister dead.
A woman who had been searching for her mother for more than 10 years has been reunited with her after posting an appeal on social media.