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Surprise! It's Katy Perry!

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Published on Jan 25, 2013

One of Ellen's favorite people was here to surprise her for her birthday, and was in rare form! Check out her exciting turn as a game show host, and see who won a trip to Australia! Then, find out how you can win a trip to Australia here!

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  1. 2588

    Exclusive! Ellen and Tony Dance

  2. 2589

    Catherine Zeta-Jones on Her Husband Kissing Matt Damon

  3. 2590

    Catherine and Ellen Hula Hoop!

  4. 2591

    Tony's Audition for 'American Idol'

  5. 2592

    That's No Pair of Scissors

  6. 2593

    Drive-Thru Prankster Strikes Again!

  7. 2594

    Birthday Message from an Old Friend

  8. 2595

    Weekly Tweetly Roundup: Panic Attack!

  9. 2596

    Katie Couric Interviews Tony

  10. 2597

    Know Ellen or Go Ellen

  11. 2598

    Sean's Dogs

  12. 2599

    Ellen's Audience Gets Naughty!

  13. 2600

    Hot Glam Girl: 50 Years Old!

  14. 2601

    Exclusive! Sean Hayes and Jillian Michaels Extended

  15. 2602

    P!nk's Birthday Message to Ellen

  16. 2603

    Ellen's Nieces' Birthday Message

  17. 2604

    Ellen's Birthday Cake!

  18. 2605

    Jude Law's Surrey

  19. Surprise! It's Katy Perry!

  20. 2607

    Ellen's Birthday Busts

  21. 2608

    Pres. Obama's Birthday Message to Ellen

  22. 2609

    Ellen Shoots Some Hoops!

  23. 2610

    Kristen Bell is Pregnant!

  24. 2611

    A Sloth is Near!

  25. 2612

    Cedric the Entertainer Raccoon Face-Off

  26. 2613

    Exclusive! Australian Fans During the Break!

  27. 2614

    The Pierce Family Meets Ellen

  28. 2615

    NeNe Leakes Gets a Striptease!

  29. 2616

    Ellen Meets an Australian Fan!

  30. 2617

    Playing Nice on 'American Idol'

  31. 2618

    Take It to the Limit

  32. 2619

    Simon Baker is Koala-Fied

  33. 2620

    Chris Pratt on His Life with Anna Faris

  34. 2621

    Be the Next CoverGirl!

  35. 2622

    Ageless Beauty

  36. 2623

    Colton's Incredible Surprise

  37. 2624

    A Trip to Australia!

  38. 2625

    Tony Karaoke, American Style

  39. 2626

    Weekly Tweetly: Did You Have Salad?

  40. 2627

    What's Wrong With These Photos? Man in the Mirror

  41. 2628

    Web Videos Live: Water You Doing?

  42. 2629

    Chris Kluwe's Incredible Kick!

  43. 2630

    Exclusive! Awesome Dancer Tears It Up!

  44. 2631

    Why Can't People Be More Like Cats?

  45. 2632

    Exclusive! G'Day USA Red Carpet Extras!

  46. 2633

    An Inspiring 10-Year-Old Philanthropist

  47. 2634

    Ellen's Got Birthday Gifts!

  48. 2635

    Mark Wahlberg's Toe Trouble

  49. 2636

    Josh Hopkins Dating Courteney Cox?

  50. 2637

    The Lowdown on Lance

  51. 2638

    Dress for Sale

  52. 2639

    Update From CoverGirl Talia

  53. 2640

    It's Nothing Day

  54. 2641

    Kyle Chandler on Kelly Clarkson's Crush

  55. 2642

    Jennifer Lopez on Ben Affleck's Win

  56. 2643

    Jennifer Lopez on 'American Idol'

  57. 2644

    L.A. Is So Cold!

  58. 2645

    Ellen Meets a Young Footballer

  59. 2646

    Insta-Gramification

  60. 2647

    Who Is Nicki Minaj Dating?

  61. 2648

    Nicki Minaj on Her Feud with Mariah Carey

  62. 2649

    'Do You See What Aussie?'

  63. 2650

    Clumsy Thumbsy: On Erection

  64. 2651

    Weekly Tweetly Roundup: No 'I' in Anxiety

  65. 2652

    Ellen's Audience Revealed

  66. 2653

    Savannah Guthrie's Fear of Frogs

  67. 2654

    It's Cold and Flu Season!

  68. 2655

    Will Strangers Help a Pregnant Amy?

  69. 2656

    'The Wanted' is Here!

  70. 2657

    Emma Stone on Co-Star Andrew Garfield

  71. 2658

    Tony Has a Girlfriend

  72. 2659

    Pictionary with Joe Manganiello and Common

  73. 2660

    The Best Web Videos of 2012!

  74. 2661

    Exclusive! Ellen's Outtakes

  75. 2662

    Ricky Gervais' Crazy Twitter Photos

  76. 2663

    Bethenny Discusses Her Divorce

  77. 2664

    Bethenny's Tips for the New Year

  78. 2665

    New Year's Resolutions

  79. 2666

    Andy Gets a Flu Shot

  80. 2667

    Ellen's 'Summer Days of Giveaways' Winners

  81. 2668

    Kaley Cuoco's Dog in the Hot Tub

  82. 2669

    Kim and Kanye's Baby Name

  83. 2670

    Ellen Hurt Her Neck!

  84. 2671

    Special Gifts from Fans

  85. 2672

    Tony is an American Citizen!

  86. 2673

    Weekly Tweetly Roundup: Depressed Cats

  87. 2674

    Kevin Hart Saved Ludacris

  88. 2675

    The Pierce Family Gets Every Prize from 12 Days!

  89. 2676

    Card Trick from Home!

  90. 2677

    Adorable Dog Loves Cute Cat

  91. 2678

    Exclusive! Bonus Magic Trick

  92. 2679

    Holly Berry Revealed!

  93. 2680

    Justin Flom's Incredible Magic

  94. 2681

    Exclusive! Ellen's Yoga Workout

  95. 2682

    Screaming Sheep Meet Screaming Lady

  96. 2683

    What's Wrong with That Tree?

  97. 2684

    Holiday Eating

  98. 2685

    Jamie Foxx's Holiday Decorations

  99. 2686

    Bethenny's DIY Holiday Gifts

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