By A Mystery Man Writer
lt;p>Wear me baby one more time: The pop star's two-decade-old trousers still fit her like a glove, as she proved on Instagram Thursday.</p>
Britney Spears tries on jeans from 20 years ago: 'They fit
Britney Spears tries on jeans from 20 years ago: 'They fit
Britney Spears tries on jeans from 20 years ago: 'They fit