Question: Agent Provocateur contained the biggest single for Foreigner, released in what month?
Sentence (from "Agent Provocateur (album)"): Although album sales were lower than their previous work in the U.S., it contains the band's biggest hit single, "I Want to Know What Love Is", which is their only #1 single in the UK and the U.S., staying at the top spot for three and two weeks respectively.
Relevant evidence: Yes