Originally posted by max_thehitman:[..]
The film "Rattle and Hum",
specially the roof-top live concert they did during the day which
is in the film.
The sound singing seems to not match the way Bobo is singing and moving
his lips and mouth.
So , most likely, they edited pieces of the filming and placed over an
existing studio song already created. It is no big deal.
Alot of bands do it on their MTV music videos. You can only notice if
you look real close.