Celebrity finance: 7 A-listers and athletes endorsing their way into your wallet — and why not to trust them

The celebrity endorsement is as old as time — or since 1882, at least, when a glycerin soap producer enlisted stage actress Lillie Langtry to tell fans how much she preferred Pears “to all others.” Little could Langtry have known that her marketing moxie would kick off nearly 150 years of A-list …