after a stellar rally. the dow jumped more than 260 points. you can thank janet yellen. the fed chair said the economy is not at the full potential. why are stock investors so happy? that likely means the fed will raise interest rates slowly. big night last night. lots of stars. jay-z and biggest names in music want to change how we listen. backed by huge stars by madonna and kanye west. all of these people on the same stage. tidal is taking on spotify. this is the first time the artist owns the streaming service. $20 for high qualify music. jay-z wants an artists to be per paid for their songs. taylor swift's music can be found on tidal. the idea of moving back home