Well, Hader doesn’t actually come out and explicitly say that Beiber is a douche, but in talking about what a “class act” Justin Timberlake was as a host (he came by himself), he contrasts him to Bieber, who brought a huge entourage to the “SNL” taping, which included one guy who would “hold his coke,” and another guy who would “hold a slice of pizza” for Bieber, something Hader found irritating given the cramped quarters (via Uproxx).
In this clip (which is the entire interview), at the 6 minute mark, Hader also talks about how he was discovered. At the time, he was a assistant editor on “Iron Chef America,” and he was doing improv on the side with Nick Offerman’s brother, Matt. Megan Mullaly — Nick Offerman’s wife — and Nick went to go see Nick’s brother perform, which is when they discovered Hader. Mullaly called NBC, and they connected Hader to Lorne Michaels, which led to him being cast on the show.