6 July 2015
- 08:4908:49, 6 July 2015 diff hist +5 Katy Perry No edit summary
- 08:2208:22, 6 July 2015 diff hist −126 Teenage Dream (Katy Perry album) Undid revision 670162254 by 49.144.140.196 (talk) You have got to be more creative in your vandalism.
21 April 2015
- 06:4806:48, 21 April 2015 diff hist 0 Walk the Moon Undid revision 657439496 by Jule Firework (talk)
- 06:4706:47, 21 April 2015 diff hist 0 Walk the Moon Undid revision 657439563 by Jule Firework (talk)
- 06:4706:47, 21 April 2015 diff hist 0 Walk the Moon No edit summary
- 06:4606:46, 21 April 2015 diff hist 0 Walk the Moon correction to the US position
15 April 2015
- 10:5010:50, 15 April 2015 diff hist −1 Dark Horse (Katy Perry song) No edit summary
- 10:4910:49, 15 April 2015 diff hist +273 Dark Horse (Katy Perry song) No edit summary
9 February 2015
- 10:4810:48, 9 February 2015 diff hist +82 Talk:Katy Perry →Infobox image
6 February 2015
- 04:3504:35, 6 February 2015 diff hist +333 Talk:List of most-viewed YouTube videos No edit summary
4 February 2015
- 10:0910:09, 4 February 2015 diff hist +1 Super Bowl XLVIII halftime show No edit summary
- 10:0910:09, 4 February 2015 diff hist +86 Super Bowl XLVIII halftime show No edit summary
6 January 2015
- 05:0905:09, 6 January 2015 diff hist −1 List of most-viewed YouTube videos just fixing a slight error
- 05:0405:04, 6 January 2015 diff hist +3 List of most-viewed YouTube videos Updated views for all videos (Date January 5, 2015)
4 November 2014
- 05:4405:44, 4 November 2014 diff hist −4 List of Billboard Dance Club Songs number ones of 2014 No edit summary
- 05:4305:43, 4 November 2014 diff hist +436 List of Billboard Dance Club Songs number ones of 2014 just added this weeks new number one
- 05:3905:39, 4 November 2014 diff hist +80 Dance Club Songs →Chart milestones
- 05:3805:38, 4 November 2014 diff hist +9 This Is How We Do →Commercial performance
- 05:3705:37, 4 November 2014 diff hist 0 Dance Club Songs →Chart milestones
- 05:3505:35, 4 November 2014 diff hist +12 Dance Club Songs →Chart milestones
- 05:3505:35, 4 November 2014 diff hist +136 Birthday (Katy Perry song) →Commercial performance
- 05:3305:33, 4 November 2014 diff hist +28 Dance Club Songs →Chart milestones
- 05:3005:30, 4 November 2014 diff hist −22 Dance Club Songs No edit summary
- 05:2905:29, 4 November 2014 diff hist +529 This Is How We Do Updating chart position for hot dance club songs.
19 October 2014
- 07:0407:04, 19 October 2014 diff hist −1 This Is How We Do Updated the singles's new position on Hot Dance Club Play chart
11 September 2014
- 04:4504:45, 11 September 2014 diff hist 0 List of most-viewed YouTube videos just correcting the views for this particular
30 June 2014
29 May 2014
- 01:0601:06, 29 May 2014 diff hist +43 List of best-selling singles in the United States →Achievements: updated
25 May 2014
- 13:0713:07, 25 May 2014 diff hist 0 List of most-viewed YouTube videos updated
22 May 2014
- 15:0315:03, 22 May 2014 diff hist +275 Birthday (Katy Perry song) No edit summary
- 08:5908:59, 22 May 2014 diff hist −5 E.T. (song) →Commercial performance
- 08:5808:58, 22 May 2014 diff hist +272 E.T. (song) →Commercial performance
- 08:5408:54, 22 May 2014 diff hist +16 Firework (song) →Certifications
- 08:5208:52, 22 May 2014 diff hist +324 Firework (song) Updated sales of Firework in the US
- 08:4808:48, 22 May 2014 diff hist −6 Hot n Cold →Sales and certifications
- 08:4508:45, 22 May 2014 diff hist +49 Hot n Cold →Sales and certifications
- 08:4408:44, 22 May 2014 diff hist +27 California Gurls →Chart performance
- 08:4208:42, 22 May 2014 diff hist +274 Hot n Cold Updated US sales
- 08:3808:38, 22 May 2014 diff hist −6 Roar (song) Fixed reference
- 08:3608:36, 22 May 2014 diff hist +20 Roar (song) →Certifications
- 08:3208:32, 22 May 2014 diff hist +14 Roar (song) Updated total US Sales
- 08:2508:25, 22 May 2014 diff hist 0 Dark Horse (Katy Perry song) Updated total sales in US
2 May 2014
29 April 2014
- 11:0211:02, 29 April 2014 diff hist −2 Dark Horse (Katy Perry song) →Accusations of blasphemy
- 11:0011:00, 29 April 2014 diff hist +5 I Kissed a Girl No edit summary
- 10:5910:59, 29 April 2014 diff hist 0 Dark Horse (Katy Perry song) According to the source, it is her 8th song to sell at least 4 million copies.
- 10:5410:54, 29 April 2014 diff hist +1 I Kissed a Girl No edit summary
- 10:5410:54, 29 April 2014 diff hist +66 I Kissed a Girl No edit summary
27 April 2014
- 08:0108:01, 27 April 2014 diff hist 0 Dark Horse (Katy Perry song) Logically it is her eighth after I Kissed A Gurl, Hot n Cold, Cali Gurls, Teenage Dream, Firework, E.T, Roar n Dark Horse...even the source says so.
23 March 2014
- 04:5404:54, 23 March 2014 diff hist +213 Firework (song) updated sales
