Mexican businessman Carlos Slim (pictured above) has just invested $40 million into mobile app Shazam. - 

Music identification app Shazam has raised $40 million dollars in its quest for continued expansion. The source of the investment? Mexico's Telecom mogul Carlos Slim. Slim's money will help the app, which was an early favorite for smartphone owners, grow its user base ahead of a rumored IPO.

Seth Fiegerman, business reporter for Mashable, joins Marketplace Tech host Ben Johnson to discuss.

Follow Ben Johnson at @@TheBrockJohnson