The best costumes are the ones that get laugh because, let's be real—is there any better feeling that showing up dressed as something so clever and funny that you instantly become the talk of the party? From the breakout toy of 2025 to TikTok trends and niche pop culture moments of both past and present, keep scrolling for 20 funny costume ideas to try this Halloween. To commemorate the year Justin Bieber released not one but two albums, grab a friend and dress up as Swag I and Swag II in black and pink, respectively.