instruction:
Given an trivia question precisely answer the question with a word/phrase/name. External resources such as Wikipedia could be used to obtain the facts.
question:
Who featured in the 2011 hit Lighters with Bad Meets Evil?
answer:
bruno mars


question:
Leonora is the heroine of which opera premiered in 1805?
answer:
fidelio


question:
Name the science fiction author of 'I, Robot'.?
answer:

isaac asimov