After receiving numerous letters from young readers who wanted to know what happened to the characters in The Soul Brothers and Sister Lou, Hunter wrote a sequel called Lou in the Limelight. In the sequel Lou and the singing group have an agent and a recording contract, and they earn large salaries performing in Las Vegas. But their success exposes them to many temptations. For example, the boys develop an expensive gambling habit, and Lou becomes involved with drugs.

Artistically, Lou in the Limelight suffers from poor character development and a weak conclusion, but readers will appreciate the novel's exciting plot and the valuable moral lessons it teaches.