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.
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"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.
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.