Britney Spears popped up on "Glee's" episode devoted to her last night -- but instead of singing, she was walking the halls of McKinley High as a Cheerio!
Ms. Spears -- not to be confused with Heather Morris' "Brittany S. Pierce" -- made three different cameos during the highly hyped "Britney/Brittany" ep: Once as herself in Madonna's "Me Against the Music" attire, again as a cheerleader and, lastly, as a high school teacher.
Miss one of the shots -- or just want to be reminded how good ranch dressing is on pizza -- check out the video recap!
UPDATE: Thanks to Brit, "Glee" pulled in its highest ratings ever, with 13.3 million viewers!