There are "internet tools" for all kinds of things, but depending on whether you're a teenage girl or not, the Shave Bieber tool, could be really useful.
It checks the web page you're browsing and censors all mentions of the teen heart throb. It works on all sites, including Google, Wikipedia, Twitter and even on Bieber's own personal home page.
You can get Shaved Bieber either as a Firefox add-on, which does all the Bieber removal automatically or as a bookmarklet, which requires you to click on it before it does its thing. If that haircut is too much for you to clap eyes on, the tool also blacks out photos labelled "Bieber" or "Justin Bieber".