The Weekend in Bieber: ‘Megamind’ Premiere & Halloween Book Signing

Justin Bieber hit Hollywood in a big way over the weekend, schmoozing with buddy Will Ferrell at the Megamind premiere and treating fans to a Halloween appearance at a Los Angeles Barnes & Noble, where he promoted his new book, Justin Bieber: First Step 2 Forever: My Story.

Biebs busted out his new favorite accessory – the oversized nerd chic glasses - for both appearances. Also seen at both the red carpet and the book store was Biebs’ impossibly adorable smile.

Click through to the photo gallery for an overload of Bieber cuteness and tell us in the comments – will you read Biebs’ book?