Question: How many number 1 hits did the actor have who starred in the film Doctor Dolittle with Rex Harrison, Samantha Eggar and Richard Attenborough ?
Sentence (from "Doctor Dolittle (musical)"): Doctor Dolittle is a stage musical with book, music and lyrics by Leslie Bricusse, based on the 1967 movie of the same name and the children's stories by Hugh Lofting about the adventures of a doctor who learns to speak the language of various animals and treats them as patients.
Relevant evidence: No