Cher is shit, can you imagine her doing abba week?? Yo gangsta mamamia innit supaaaa trooopa maaaan??!! 
BUT I feel bad for her when everyone was moaning for not singing when she had bad tonsillitis. I have it many times and I can barenly stand, I vomit, high temp and can't talk. Sometimes you are too ill to preform, she should have seen a Dr.