Kahan is appearing as a musical guest for the second time on Saturday Night Live . Noah Kahan, Matt Damon and Ben Marshall in 'SNL' promos NBC/YouTube Trending on Billboard Noah Kahan has always wanted to work with “Matt & Ben,” and now his dream has come true — sort of. In new promos for this weekend’s Saturday Night Live episode, musical guest Kahan and host Matt Damon are joined by a different Ben than the one typically associated with Damon: SNL castmember Ben Marshall. “This is so exciting. I’ve always wanted to do something with Matt and Ben,” Kahan says in the promo, to which Marshall replies, “Aw, thanks so much, man. That’s so cool.” “I’m sorry, I meant Ben Affleck,” Kahan clarifies. “Why would you bring that up now, right?” Marshall wonders, while Kahan counters, “It’s the first time I’m seeing Matt!” For his part, Damon tells Kahan: “We’d actually love to do something with you.” “Hell yeah, amazing,” Kahan says. “Thank you.…