|"What's the Frequency Bessie?"|
|Air date||September 25, 2009|
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|"Bee Plus One"||"Bee Nice"|
What's the Frequency Bessie? is the fifth episode of the second season of The Mighty B!. It premiered on September 25, 2009, on Nickelodeon.
Bessie gets an abnormally large filling in her tooth and discovers she is now a lean mean radio-signal receiving machine. With so many voices in her head, she can hardly be responsible for her actions!