This is about drug addiction and how drugs can control you like children control their toys. Metallica's "Master Of Puppets" has a similar theme.
Martika (her real name is Marta Marrera) was born in May 1969 in Whittier, California. Her Cuban parents left their home country during a revolution. Martika started acting before launching a recording career, appearing in the film version of Annie in 1982 and on the TV series Kids Incorporated from 1984 to 1986. In 1988 her first single, "More Than You Know," landed on the American charts; a year later, this was released as the follow up."
Stacy Ferguson was one of the background singers on this. She starred in Kids Incorporated with Martika and went on to become Fergie of Black Eyed Peas.
Eminem sampled this on his 2004 song "Like Toy Soldiers."