Very nice song and here is the awesome collection, you can't find multi mixes anywhere. I collected the best ones for you. Get your favorites and Enjoy :)
Pitbull feat. Marc Anthony - Rain Over Me (V Reznikov & Denis First ft P Portnov) <-- The video, which is my favorite. 
Pitbull feat. Marc Anthony - Rain Over Me (Original Radio Mix)
Pitbull feat. Marc Anthony - Rain Over Me (Alex Barrera Edit)
Pitbull feat. Marc Anthony - Rain Over Me (Benny Benassi Remix)
Pitbull feat. Marc Anthony - Rain Over Me (DJ Kana Remix)
Pitbull feat. Marc Anthony - Rain Over Me (Dj Lyosha Ice Extended Mix)
Pitbull feat. Marc Anthony - Rain Over Me (Dj Santy Mix)
Pitbull feat. Marc Anthony - Rain Over Me (Exis Tovilla Dance Club Mix)
Pitbull feat. Marc Anthony - Rain Over Me (QUINTINO Remix)
Pitbull feat. Marc Anthony - Rain Over Me (Remix 2011)
Pitbull feat. Marc Anthony - Rain Over Me (Gianni Marino Remix)
Pitbull feat. Marc Anthony - Rain Over Me vs Bruk Shine on (ЯETRO Bootleg)
