Who is this female R&B singer?

I don't remember the song nor the singer. I remember the clip of the song and that she was sounded like Amy Winehouse. She was brunette girl ( a litte reddish shines I remember ) She was singing and walking with mic. somewhere like a barn. There was some guys scotch typed to floor, one hanged from the leg. And a scene she was pouring a bottle of water on one guy ( he was in a barrel ). At the back scene there was members of her band. I remember one guy blond with dreadlocks hair was playing contra-b. Please help me if anybody remembers?? Thanks