the number-one trend on Twitter was "memes."

Yeah, people were memeing everything in the debate.

It's actually a great lesson for the candidates.

Everything you do or say can become a meme,

so you gotta be careful.

Uh, let me explain.

Thank you.

[ Cheers and applause ]

♪♪

♪ When you're runnin' for the White House ♪

♪ And you want to get ahead ♪

♪ You gotta get attention ♪

♪ Or else your campaign's dead ♪

♪ Iowa, New Hampshire ♪

♪ It's always been your dream ♪

♪ And it might work out ♪

♪ Just don't become a meme ♪

♪ Don't become a meme ♪

♪ You gotta keep your image clean ♪

♪ Don't become a meme ♪

♪ Some things can't be unseen ♪

♪ Don't elbow your wife ♪

♪ Don't scream for your life ♪

-Byah!

-♪ Don't fall off your chair ♪

♪ Eat a corn dog at the fair ♪

♪ Don't try to high-five ♪

♪ Don't drink water live ♪

♪ Don't open your jaws ♪

♪ Don't ask for applause ♪

-Please clap.

[ Applause ]

-♪ Everything you do ends up on YouTube ♪

♪ Everything you do ends up on YouTube ♪

♪ Don't you know that ♪

♪ Everything you do ends up on YouTube ♪

♪ Everything you do ends up on YouTube ♪

Roots, help me out.

-♪ Everything you do ends up on YouTube ♪

-Come on, now!

-♪ Everything you do ends up on YouTube ♪

-Harmonize. Here we go.

-♪ Everything you do ends up on YouTube ♪

♪ Everything you do ends up on YouTube ♪

♪ Everything you do ends up on YouTube ♪

♪ Everything you do ends up on YouTube ♪

-♪ And if you wanna be sure ♪

♪ That your supporters do not vanish ♪

♪ Keep this in your head ♪

♪ Don't ever try to speak Spanish if you don't know how ♪

-El hombre del peluquin.

[ Laughter ]

-[ Singing in Spanish ]

♪♪

♪ Don't become a meme ♪

♪ Don't become a m-e-e-e-eme ♪

[ Cheers and applause ]

♪♪

[ Cheers and applause ]

Thank you, Roots. Give it up for The Roots right there.