violinist lindsey stirling performs live when we come back. ♪ >>> lindsey stirling is that classicallyjust a moment. but first here's a look at all she's accomplished. ♪ she's a viral phenomenon. her youtube page with more than a half billion views and now her music is hitting a high note selling out tours worldwide. ♪ >> lindsey stirling is putting a new twist on class cal music combining the haunting sounds of the violin with graceful dance moves and fierce futuristic electronics. ♪ her self-titled debut album blasting to number one on the billboard dance electronic chart with more than 300,000 copies sold all without the backing of a major label and the album's hit song "crystallize" has more than 99 million hits on youtube and climbing. ♪ >> reporter: the rising star already collaborating with superstars like john legend. ♪ crying you're beautiful too >> reporter: making her a breakout star striking all the right chords. >> ooh. >> all right. lindsey stirling's "shatter me" has over 10 million hits on youtube. enjoy. ♪ ♪ i see the stars even moon ♪ tired mechanical heart beats till

yeah, our thanks to lindsey stirling and lzzy hale. love your music. on to the final tomorrow. >> they'll face off for that $10,000 grand prize. unfortunately, we have to say good-bye to gulf shore, alabama. you were great, as well. see you all tomorrow. cheeseburger. i'll have e you can have that. or-two new versions of the ultimate cheeseburger. one has sliced jalapeños and creamy ranch sauce, the other has sweet and tangy barbecue sauce and grilled onions, plus double meat and cheese like the original. new versions...? two new versions! now, this was just a training video, but these twists on my ultimate cheeseburger will blow people's minds. is that guy ok? >>> good morning. i'm kristen sze. let's get right to meteorologist mike nicco who has a lot of explaining to do with this weather forecast. >> yeah, how about that monsoon moisture. good morning, everybody. the sprinkles that we're tracking on live doppler 7-hd moving from southeast to northwest. so far it's not hit our rain gauge so none of it has been reporting as a measurable, but it's stim