Who Knows Katy? -- Katy Perry vs. Superfan Published 2014-04-22 Download video MP4 360p Recommendations 00:54 Rude Fans vs. Celebrities 😳 05:37 "Ew!" with Ariana Grande 09:02 Who Knows Selena Gomez? 06:24 Who Knows Gwen Stefani? – Gwen Stefani vs. Superfan 15:37 Kelly Clarkson Goes Head To Head With Her Biggest Fan! | Fan Vs Artist Trivia 09:15 Celebrities Who Show You How To Deal With Sexist Comments 12:35 Katy Perry's FULL Pepsi Super Bowl XLIX Halftime Show! | Feat. Missy Elliott & Lenny Kravitz | NFL 09:06 Phone Booth with Hugh Jackman and Shaquille O'Neal 08:37 Modern Family Feud (2013) 10:25 Celebrities Surprising Fans 😲 07:24 Spill Your Guts or Fill Your Guts w/ Kris Jenner 03:40 'Will You Perry Me?' with Katy Perry 08:27 Avengers Family Feud 04:36 Katy Perry Puts A Superfan Through A Lie Detector! 05:58 Name That Song Challenge with Taylor Swift 06:04 Who Knows Metallica? - Metallica vs. Superfan 09:42 73 Questions With Taylor Swift | Vogue 29:21 Top 10 Most Surprising America's Got Talent Auditions 04:30 Chris Tucker's Friendship with Prince and Michael Jackson | Late Night with Conan O’Brien 25:35 8 Times Celebrities Surprised Their Fans on The Ellen Show Similar videos 05:57 Miley Cyrus vs Superfan – Who Knows Miley? 04:32 Katy Perry Guesses Who is from Her Past 01:49 Katy Perry Meets Her Superfan 02:00 Katy Perry Surprises One Of Her Superfans 08:42 Katy Perry & Thomas Rhett Test Their Friendship | Do You Even Know Me? | @LADbible​ 07:22 Can Katy Perry Remember Her Own Lyrics?! 🤔 07:48 Are you more Taylor Swift OR Katy Perry FAN? 01:41 Katy Perry - Superfan Quiz 03:36 KATY PERRY MUSIC QUIZ | How well do you know her songs? | GUESS THE SONG 10:56 Katy Perry Answers Adorable Questions From Her Youngest Fans | PeopleTV 02:47 Katy Perry Reveals A Childhood Secret & Talks About Delivering A Baby 02:17 Katy Perry Hilariously PRANKS Superfan With Lie Detector Test On Capital FM 05:37 Guess the KATY PERRY Songs by The Official Music Video Scenes | Challenge for KatyCats | Fan Test 01:49 Katy Perry’s #1 Fan … Diss! | TMZ 06:16 Katy Perry Meets her Superfan(09/13/10) More results