Here is a video of Katy Perry obviously lip syncing at the 15th annual NRJ music awards in Cannes this past weekend. Her vocal track is completely out of alignment with her singing (and if it seems like maybe this video is just a little wonky, wait until one minute in).
At approximately 0:47, a tiny French man appears on stage, at which point Perry stops dancing/making mouth movements. He greets her and says, "If you don't mind, we can restart. We had a little problem."
It seems like that "little problem" refers to the fact that Perry's "singing" started without her. When the song restarts (at about 1:37), she at least appears to be singing for real.
[h/t Buzzfeed]
At approximately 0:47, a tiny French man appears on stage, at which point Perry stops dancing/making mouth movements. He greets her and says, "If you don't mind, we can restart. We had a little problem."
It seems like that "little problem" refers to the fact that Perry's "singing" started without her. When the song restarts (at about 1:37), she at least appears to be singing for real.
[h/t Buzzfeed]