Seventies’ teen idol Leif Garrett was arrested Monday with heroin in his shoe.

Groovy.

Apparently (meaning, according to TMZ.com), Garrett was shaking and sweating profusely at an L.A. train station, which is exactly what you want to do when you’re carrying super illegal drugs on your person.

Cops approached him and he wound up behind bars for a couple days.

He posted bail and is due back in court on Feb. 24.