Can the PSP headphones work on the PSP lite?

You can not use the normal PSP headphones on a PSP 2000 series, however you can buy a pair of PSP 2000 series headphones which you can most likely get anywhere you can get the original PSP headphones the original PSP has a 3 pronged connecter cord while the PSP 2000 has a 5 which comes on the PSP 2000 series headphones.