VIDEO : How Cher Stays Fabulous

Iconic singer and actress Cher turns 70 years old on Friday, May 20. The superstar talked to People about her physique and beauty secrets, and said she keeps her costumes in a special temperature-controlled unit to preserve them. She says, "I don't plan to re-wear them, but also my whole life I was 106 pounds, and I haven't been that in a million years." At 71, the legendary star is still in great shape and says she stays that way with the help of daily planks, which she can do for three to five minutes.