Biggest Pop Songs Of 2011 In Four Minutes (WATCH)
We loved this medley of 2011's biggest pop hits by YouTubers Sam Tsui and Kurt Schneider -- even though we'll admit it might be a tad early for a year-end retrospective. (But if Justin Bieber can release his Christmas album in October, maybe anything goes this year!)
Can you name all the songs they cover? Which big hits from the year are missing? Sound off in the comments below.