Sure, everyone knows the chorus of famous catchy tunes, but how well do you really know the songs on our list?
Recently, Billboard created a master list of The 100 Greatest Choruses of the 21st Century, reliving and reviving the best of the 2000s classic hits we couldn't get out of our heads. From Celine Dion to your favorite Cascada anthem, it's hard to believe these timeless lyrics we once wore on our sleeves and knew by heart would ever be forgotten.
Try your hand at guessing our greatest chorus songs from just the verse lyrics below -- it's harder than you think!
To put your memory to the test, we created the quiz below. Good luck!