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(Yahoo!) - The battle of the Justins is on! Bill Hader caught up with Howard Stern on his radio show on Wednesday to talk about his recent departure from "Saturday Night Live" after eight seasons. And while the comedian has worked with his fair share of A-list celebrity guests on "SNL," the shock jock brought up fan favorite, Justin Timberlake. Stern said, "I was very shocked that Justin Timberlake was such a good guest host." Bill agreed and shared his love for the low-maintenance singer saying, "He's great. Also, the guy doesn't show up with anybody. It's just him."

The funnyman then launched into a comparison between Timberlake and another famous Justin ... the Biebs! And he didn't exactly have rave reviews for the younger pop star saying, "Justin Bieber showed up with like 20 guys ... He had a guy holding a slice of pizza. A guy holding a Diet Coke. You're trying to fight through all these people to get dressed."

Check out the vid to hear Bill Hader tell the tale of two Justins!


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