Photos: FilmMagic/Getty
Or at least we thought it was a new fringe for a couple of seconds, then we realised Katy was helpfully demonstrating the perils of inadvertantly exposing your new fringe as a fake through failure to colour match your roots.
Photo: FilmMagic
It looks like the blue hairpiece incorporates a fringe (about which we are trying not to use the phrase "bangs trauma") and some longer strands of hair designed to blend the wiglet in to her actual hair.
Sadly the latter is fighting a losing contest because if Katy's current root situation. If she'd debuted this fringe look atop freshly dyed hair she could probably have gotten away with it, but as it is, the front portion of her head is true blue through and through while the rest is a little lighter and with visible regrowth.
Photo: FilmMagic
We're rather assuming that Katy doesn't actually give a fig about any of this, but in case you were planning on wearing a fringe wiglet it's a handy warning of the perils of not matching your colours.
- Katy Perry<p> 29 Oct 2003- </p> <h1 class="mdH" id="titleValue" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal bold 13px/normal Arial; font-size: 10px; line-height: 10px; font-weight: normal; font-family: Verdana; color: rgb(59, 58, 38); "> Mercedes-Benz Shows LA Fashion Week Spring 2004 -Miller Girl by Nicole Miller Backstage and Front Row</h1>

- Katy Perry<p> Katy Perry at Jimmy Choo Oscar Suite, 23 Feb 2004</p>

- <p> </p> <h1 class="mdH" id="titleValue" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal bold 13px/normal Arial; font-size: 10px; line-height: 10px; font-weight: normal; font-family: Verdana; color: rgb(59, 58, 38); "> Enchanted Garden Party' for Sass & Bide's Spring/Summer 2005 Collection 15 Sep 2004</h1>

- <p> Katy Perry wearing Andrew Gn Spring 2005 Collection</p> <p> 14 Nov 2004</p>

- <p> </p> <h1 class="mdH" id="titleValue" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal bold 13px/normal Arial; font-size: 10px; line-height: 10px; font-weight: normal; font-family: Verdana; color: rgb(59, 58, 38); "> Nintendo DS Pre - Launch Party at The Day After - Arrivals</h1>

- <p> attends the Betsey Johnson 2008 fashion show during Mercedes-Benz Fashion Week Fall 2008 at The Tent at Bryant Park on February 4, 2008 in New York City.</p>

- <p> Katy Perry 01 Dec 2004</p> <p> Katy Perry during Chandon at Hollywould Dress Launch Party at Sax Fifth Avenue Beverly Hills in Beverly Hills, California, United States.</p>

- <p> </p> <h1 class="mdH" id="titleValue" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal bold 13px/normal Arial; font-size: 10px; line-height: 10px; font-weight: normal; font-family: Verdana; color: rgb(59, 58, 38); "> H.D. Buttercup Inaugural Celebrity Treasure Hunt for Charity and Cinco de Mayo - After Party 05 May 2005</h1>

- <p> Katy Perry during Lush SWAG-Fest 2: Denim, Diamonds and a Do at Lush Beauty Boutique in Beverly Hills, California, United States.22 May 2005</p>

- <p> </p> <h1 class="mdH" id="titleValue" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal bold 13px/normal Arial; font-size: 10px; line-height: 10px; font-weight: normal; font-family: Verdana; color: rgb(59, 58, 38); "> Korn "See You on the Other Side" Tour Launch Party at Hollywood Forever Cemetery on Friday the 13th 13 Jan 2006</h1>

- <p> </p> <h1 class="mdH" id="titleValue" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal bold 13px/normal Arial; font-size: 10px; line-height: 10px; font-weight: normal; font-family: Verdana; color: rgb(59, 58, 38); "> Vanity Fair Presents the 2006 Svedka Erotica Reading Series</h1> <p> </p> <p> 20 Apr 2006</p>

- <p> 07 Jun 2006 </p> <h1 class="mdH" id="titleValue" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal bold 13px/normal Arial; font-size: 10px; line-height: 10px; font-weight: normal; font-family: Verdana; color: rgb(59, 58, 38); "> NYLON Celebrates Its Annual Music Issue With MySpace.com</h1>

- <p> </p> <h1 class="mdH" id="titleValue" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal bold 13px/normal Arial; font-size: 10px; line-height: 10px; font-weight: normal; font-family: Verdana; color: rgb(59, 58, 38); "> Nintendo Launches Wii - The Revolutionary Home Video Game Console - Arrivals 16 Nov 2006</h1>

- <p> </p> <h1 class="mdH" id="titleValue" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal bold 13px/normal Arial; font-size: 10px; line-height: 10px; font-weight: normal; font-family: Verdana; color: rgb(59, 58, 38); "> 2007 EMI Post GRAMMY Party - Inside 11 Feb 2007</h1>

- <p> LOS ANGELES, CA - FEBRUARY 10: Musician Katy Perry attends the EMI party at Dominick's on February 10, 2008 in Los Angeles, California.</p>

- <p> poses in the press room during Z100's Zootopia at the IZOD Center on May 17, 2008 in East Rutherford, New Jersey.</p>


- <<visits>> MTV's "TRL" on June 9, 2008 at MTV Studios in New York.

- <p> LOS ANGELES, CA - JUNE 14: Recording artist/actress Katy Perry attends designer Kira Plastinina's United States Launch Party on June 14, 2008 in Los Angeles, California.</p>

- <p> attends the Katy Perry record release party for "One of the Boys" at Capitol Records on June 17, 2008 in Los Angeles, California.</p>

- <p> HOLLYWOOD, CA - JUNE 18: ***EXCLUSIVE*** Katy Perry during the taping of MTV's 'FNMTV' on June 18, 2008 in Hollywood, CA. The show airs Fridays at 8pm on MTV.</p>

- <p> HOLLYWOOD, CA - JULY 10: Katy Perry backstage during the taping of MTV's 'FNMTV' on July 10, 2008 in Hollywood, CA. The show airs Fridays at 8pm on MTV.</p>

- <p> NEW YORK - JULY 26: Singer Katy Perry hosts Travis McCoy's birthday celebration at Country Club on July 26, 2008 in New York City (Photo by Roger Kisby/Getty Images)</p>

- <p> LOS ANGELES, CA - SEPTEMBER 07: Katy Perry arrives at the 2008 MTV Video Music Awards at Paramount Pictures Studios on September 7, 2008 in Los Angeles, California. </p>

- <p> Katy Perry BERLIN - SEPTEMBER 17: attends the Katy Perry Concert at Fritzclub at the Postbahnhof on September 17, 2008 in Berlin, Germany. (Photo by Florian Seefried/Getty Images)</p>

- <p> PARIS - SEPTEMBER 29: Katy Perry arrives at the Patrick Demarchelier's exhibition Party on September 29, 2008 in Paris, France.</p>

- <p> arrives at VH1's 14th Annual Critics' Choice Awards held at the Santa Monica Civic Auditorium on January 8, 2009 in Santa Monica, California.</p>

- <p> CANNES, FRANCE - JANUARY 17: Singer Katy Perry attends the NRJ Music Awards 2009 held at the Palais des Festivals on January 17, 2009 in Cannes, France.</p>

- <p> attends "The Model as Muse: Embodying Fashion" Costume Institute Gala at The Metropolitan Museum of Art on May 4, 2009 in New York City.</p>

- <p> <<enter caption="" here="">> on June 7, 2009 in London, England.</enter></p>

- <p> BERLIN - NOVEMBER 05: Katy Perry poses for a picture backstage during the 2009 MTV Europe Music Awards held at the O2 Arena on November 5, 2009 in Berlin, Germany.</p>

- <p> Katy Perry attends Perez Hilton's 'Carn-Evil' Theatrical Freak and Funk 32nd birthday party at Paramount Studios on March 27, 2010 in Los Angeles, California.</p>

- <p> <<enter caption="" here="">> on June 6, 2010 in Universal City, California.</enter></p>

- <p> Katy Perry arrives at the 4th Annual House of Hype Music Awards at SLS Hotel on August 28, 2011 in Beverly Hills, California.</p>

- <p> U.S singer Katy Perry arrives at a central London Theatre, Monday, Oct. 17, 2011. </p>

- <p> Manadatory Credit: Photo by McPix Ltd / Rex Features (1483009b) Katy Perry wearing a cat mask Katy Perry at Real Radio, Manchester, Britain - 31 Oct 2011</p>

