It turned out that Brie got her start in show business working as a clown at children's parties, hence her extensive knowledge of balloon animals.
As she started to pump up a rather long balloon, fellow guest Garry Shandling deadpanned that the sight was "way too easy" to joke about.
"Community" is currently on hiatus. "The Tonight Show" airs weeknights at 11:35 p.m. ET on NBC.
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