Spotify stock just set a fresh record high, and it's starting to look a little pricey.Spotify (SPOT -0.86%) is the world's largest music streaming platform. Its stock has been on a tear this year with a 142% gain so far, which crushes the 23% return in the S&P 500 (^GSPC 0.39%).Record subscriber numbers, strong revenue growth, and surging profits have been contributing factors to the incredible move in Spotify stock. The company's long-term forecast suggests it still has significant room for growth, which c ...