Considering that Slightly Stoopid were nearly busted recently at the U.S.-Canadian border, "2 am" takes on greater meaning. It's about an early-morning police raid during which, Miles Doughty sings, "I'm holding all the trees."

Inside: Watch "2 am"

One of the biggest hits of 2008, Jason Mraz' "I'm Yours" is a laid-back, reggae-style pop ditty. The video was filmed in Hawaii, where surely copious amounts of Maui Wowie were smoked.

Inside: Watch "I'm Yours"

One of Bob Marley's most enduring songs, "Natural Mystic" is the lead track on 1977's Exodus and title of a 15-song Marley collection released in 1995.

Inside: Watch "Natural Mystic"

Song of the year winner of the 2007 Global Marijuana Music Awards, Collie Buddz's "Come Around" is pure ganja reggae: "Finally the herbs come around / The high grade when me a look for / Me get it by the pound."

Inside: Watch "Come Around"