[Verse 1] Sitting in Article One, Section Eight, Congress's power to regulate Between the states, commerce flows free, But who controls it? Let's go see! [Chorus] It's the Commerce Clause, oh yes indeed! (Interstate!) Letting Congress take the lead (What can they do?) If it moves across state lines, Congress has the power to draw the signs! [Verse 2] Wickard grew some extra wheat at home, Said "It's just for me, leave me alone!" But the Court said "No, you see, It affects commerce substantially!" [Verse 3] Heart of Atlanta, a motel's tale, Said serving all would make them fail, But Congress said "That's interstate trade!" Civil Rights through commerce were made! [Bridge] Three ways Congress gets to play: Channels, instruments, hey hey! And activities that substantially affect, Interstate commerce, don't forget! [Verse 4] But Lopez brought a gun to school one day, Court said "Congress, that's not your say!" Too far from commerce, can't you see? Some things just have to be let be! [Final Chorus] That's the Commerce Clause, now you know! (Interstate!) Giving Congress room to grow (But not too far!) Cross state lines with goods and trade, That's how federal power's made!