This video is of the expansion of Popular game Grand Theft Auto 4.
This Game is know as Episodes from Liberty City.

The Ballad of Gay Tony injects Liberty City with an overdose of guns, glitz, and grime. As Luis Lopez, part-time hoodlum and full-time assistant to legendary nightclub impresario Tony Prince (a.k.a. "Gay Tony"), players will struggle with the competing loyalties of family and friends, and with the uncertainty about who is real and who is fake in a world in which everyone has a price.