Jimmy Fallon can do a spot-on impression of Regis Philbin.
As it turns out, Philbin can do a pretty good impression of Fallon, too.
The venerable TV personality made a special appearance on "The Tonight Show" Friday evening, filling in for sideman Steve Higgins and adding a dose of outsized bombastic charm to a few thank-you notes of his own.
"Thank you, microwave popcorn, for coming in two varieties: Not-completely-popped and smoking wreckage," Philbin quipped as he took over Fallon's usual Friday-night bit — which he mimicked more or less perfectly. He even tossed in Fallon's overwrought arm sweep, although that detail took some practice.
Another of Philbin's gems: "Thank you, saggy tattoos — or as you're also known, gramp stamps."
Actor Vince Vaughn, who stars in the highly anticipated second season of HBO's "True Detective," returned Friday to the visitor's couch.
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He and Fallon talked through their awkward conversation the night before with "True Detective" co-star Colin Farrell, and then teamed up for a round "5-Second Summary."
"Tonight" returns Monday, June 22, with guests Seth MacFarlane and Amber Heard as well as musical guest Leon Bridges.