RA the Rugged Man brought up a good point about this.
He said something to the effect of, if Wu sampled Cher (provided the beat was good) it would be monumental. Get the REAL Cher and everyone complains.
All we have is a 50 second snippet. Calm down. We don't know what the music sounds like, and even so whats inherently wrong with Cher? If it sounds good, it sounds good. If it doesn't it doesn't. Let the music speak for itself.