To the songs:
Showgirls: Strong voice. The song has a good start, but halving speed takes out the drive. I would stand still on the dancefloor and wait until it starts up again. For a party- or let's say a hitsong it's not really a good idea to change speed in a song. There are other ways to bring tension and contrast into the tune.
Let me love ya: seems to be a standard song, nothing exciting, nothing catchy. But the video shot at street event in Graz is funny. The singer is going around asking people to love him - i suppose.