my site got approx 2k traffic yesterday from google, but how?

i have an mobile ringtones downloading site, i not work on that site from last 3 months,
usually i have very low traffic on it about 100-150 perday, but am totally shocked when i see yesterday analytics report, i got about 2k traffic,

i just want to know will that traffic again will be down? and why my traffic increased that much….

sorry for my bad english

See original post by Ashish Paul