Alex Winston has to be the 'drill sergeant' to her live band

The 'Locomotive' singer and songwriter says she has a very close bond with her backing bands - of which she has two, one based in New York and another in London, as well as a troupe of backing singers she affectionately refers to as her 'Sister Wives' ' but she keeps them in line when she has to. She told BANG Showbiz: ' have a band in New York and in London I have another group of friends