I need help finding a song 由 Wisin Y Yandel...

I heard this song at least 10 times while i was in cuba this summer and i can't seem to find it. The only clue i know is that the song starts off with this woman 唱歌 the letter "W" in spanish (double-eh) 3 times in a row in a real sexy voice... sounds weird 哈哈 but i would 爱情 to actually find this song...