“Don’t be yourself. Be a pizza. Everyone loves pizza”

“Don’t be yourself. Be a pizza. Everyone loves pizza” is a jocular pizza saying that has been printed on several images. YouTube personality PewDiePie (Felix Arvid Ulf Kjellberg) published the saying in his book, This Book Loves You (2015).
 
“Don’t be yourself. Be a pizza. Everyone loves pizza.🍕 - @pewdiepie” was posted on Twitter on June 11, 2015.
   
   
Wikipedia: PewDiePie
Felix Arvid Ulf Kjellberg (/ˈʃɛlbɜːrɡ/ SHEL-burg, Swedish: [ˈfeːlɪks ²ɕɛlːˌbærj]; born on 24 October 1989), better known by his online pseudonym PewDiePie (/ˈpjuːdipaɪ/ PEW-dee-py), is a Swedish web-based comedian and video producer. He is known for his Let’s Play commentaries and vlogs on YouTube.
 
Wikipedia: This Book Loves You
PewDiePie’s This Book Loves You is a parody of self-help books, released on 20 October 2015 by Penguin Group. The book includes various aphorisms and wisdom/jokes, paired with visuals. The book is available both as a paperback edition and an e-book.
 
OCLC WorldCat record
This book loves you
Author: PewDiePie
Publisher: New York, New York : Razorbill, an imprint of Penguin Random House, [2015] ©2015
Edition/Format:   Print book : Secondary (senior high) school : English
Database: WorldCat
Summary:
A popular blogger shares humorous pieces of advice and positivity, including “Never forget you are beautiful compared to a fish” and “Every day is a new fresh start to stay in bed.”
YouTube celebrity PewDiePie shares his “wisdom” with readers in this spoof of inspirational quotes collections.
   
Twitter
Ah-lee-sha‏
@alyshajaynee
Don’t be yourself. Be a pizza. Everyone loves pizza.🍕 - @pewdiepie
11:50 AM - 11 Jun 2015
 
Twitter
Bona Pasión◢◤‏
@FrancoBonavento
If all else fails, remember: “Don’t be yourself. Be a pizza. Everyone loves pizza.”
12:32 PM - 11 Jun 2015
 
Twitter
Nick Imkamp‏
@Studmuffin365
@pewdiepie “Don’t be yourself. Be a pizza. Everyone loves pizza.”
I have reached enlightenment. This book will solve every world issue.
1:08 PM - 11 Jun 2015
 
Twitter
Rin‏
@Lurivia99
@pewdiepie “Don’t be yourself. Be a pizza. Everyone loves pizza.”
#ThisBookLovesYou
1:42 PM - 11 Jun 2015
 
Facebook
The Verge
June 12, 2015 ·
“Don’t be yourself. Be a pizza. Everyone loves pizza.”
— PewDiePie.
 
Tech Times
PewDiePie Goes Beyond YouTube And Will Publish A Book: What Is It About
16 June 2015, 2:48 am EDT By Nicole Arce
(...)
The book, which doesn’t come out until October 20, banks on the same kind of exaggerated humor found in PewDiePie’s YouTube videos and provides a parody of the self-help industry. In the book’s Amazon page, its description says it is 256 pages of “beautifully illustrated inspirational sayings by which you should live your life.” Some of PewDiePie’s featured words of wisdom include “You can never fail if you never try” and “Don’t be yourself. Be a pizza. Everyone loves pizza.”
 
YouTube
YouTube star PewDiePie made $7 million in 2014
Madd Rapper
Published on Jul 9, 2015
Last year around this time, word got out that Felix Kjellberg, a 24-year-old Swedish bro known online as PewDiePie, made $4 million a year by playing video games, recording his reactions and uploading the resulting videos to YouTube. At the time, he had 27 million YouTube subscribers. Today, Kjellberg has 37.7 million subscribers on YouTube and his company, PewDiePie Productions, pulled in roughly $7.4 million in revenue in 2014, according to Swedish newspaper Expressen. It looks like this whole “watch people play video games on the internet” craze is here to stay.
(...)
Kjellberg’s next big thing is the launch of his book, titled This Book Loves You, a collection of inspirational quotes that he’s said over the years as an online personality. For example: “Don’t be yourself. Be a pizza. Everyone loves pizza.” This Book Loves You is due to drop in October.
       
Twitter 
Mashpotatoes‏
@Mojito_Matt
Don’t be yourself…
Be pizza, Everyone loves pizza.  #PewDiePie
2:52 PM - 20 Oct 2015
 
Google Books
Digital Advertising
By Andrew McStay
New York, NY: Palgrave Macmillan
2016
Pg. 83:
His success is not just online, because in 2015 he published a satirical self-help book with lines such as ‘You can never fail if you never try’ and ‘Don’t be yourself. Be a pizza. Everyone loves pizza’ (PewDiePie, 2015).