Here's one way you know when the market is hot.

Pop music megastar Katy Perry sat down with billionaire investor and Berkshire Hathaway (BRK.A - Get Report) (BRK.B - Get Report) CEO Warren Buffett recently, and the two seem to have talked more than just Grammy nods. 

 

nbd asking Warren Buffett his thoughts on cryptocurrency

A post shared by KATY PERRY (@katyperry) on

Perry wrote on Facebook Inc.-owned (FB - Get Report) Instagram Wednesday morning that she and the Oracle of Omaha discussed cryptocurrency. The conversation came just before popular digital currency bitcoin surpassed $11,000 in value early Wednesday. 

Katy Perry.
Katy Perry.

While Perry is more widely known for her on-stage performance than her market performance, she's become a veritable businesswoman since taking the U.S. airwaves by storm about a decade ago.

Perry earned $33 million last year, according to Forbes, and has an even stronger 2018 teed up with endorsement deals inked for Procter & Gamble Co.-owned (PG - Get Report) CoverGirl, Hennes & Mauritz-owned (HMRZF) H&M and a gig on "American Idol."

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