1000 No. 1s Video Series Day 4:
Jimmy Jam Talks Janet's 'When I Think of You'
2011 was the year that Billboard celebrated the 1000th No. 1 song on the Hot 100. As we look back on this year in music, we're celebrating that milestone with a month-long series of videos --- one for each day of December -- chatting with 31 of the hitmakers who rocketed to the top of the chart since its inception in 1958. SEE THE FULL CHART HERE. 
When putting together Jackson's third album, "Control," Jimmy Jam foresaw the groundbreaking pop elements of songs of "Nasty" and "What Have You Done For Me Lately" while thinking of "When I Think of You" as a lesser track on the album. When he played the album for Janet's brothers, however, they all thought that "Think" was the breakout hit from the disc. "'When I Think of You' got all the way to No. 1, so they were absolutely right," says the producer. "They're the Jacksons for a reason -- they know."
Be sure to come back tomorrow (Dec. 5) for the next 1000 No. 1s video: Def Leppard talks "Love Bites."
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