Cher is one of those rare artist's who does her own makeup very often and is very good. One of her favorite people to do it for her is the late great Kevyn Aucoin. In my opinion Kevyn is the greatest makeup artist's ever! If you ever need any tutorials with makeup purchase one of his books, they are detailed and will improve your skills by leaps and bounds. You can grab then from Amazon or Ebay for really cheap these days! You can also purchase his make up at www.KevynAucoin.com (click link on sidebar)
He did Cher's makeup for her video 'Dov'è L'Amore' from her hit album 'Believe' in 1999. It's breathtaking! Can you believe it's from 1999! Everything comes back! It looks very current.