Hey. Remember when everyone was happy for Nelly for his surprise comeback with "Just  A Dream?" Yeah? Well, comeback over.

Nelly was busted and detained at the US border in Sierra Blanca, TX Wednesday night for possession of heroin, a large amount of marijuana, and a loaded handgun on his tour bus.

This is the same border that has busted other celebs like Fiona Apple, Snoop Dogg, and Willie Nelson for drug possession fairly recently.

As one of his most famous songs goes: "If you wanna go and take a ride wit me" uh... no thank you. Dummy.