Download songs

Salut! Here are some questions from Russia. I have hardly found and downloaded the songs from DiscO-Zone, but I can't find good links of the songs of Number 1
Can you help me?
The second question: on one site it's written that "Te-am visat" is O-Zone's song, but in another place they write that Non-Stop sang it. Who sang it really?
Thanks

The second question: on one site it's written that "Te-am visat" is O-Zone's song, but in another place they write that Non-Stop sang it. Who sang it really?
Thanks