[Answer] Who is the only artist to have a #1 single on a Billboard chart in each of the last six decades?

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Who is the only artist to have a #1 single on a Billboard chart in each of the last six decades?

• Cher:Cher has had a total of 14 number one hits and a total of 33 top ten hits on all Billboard charts combined. Cher’s career as a recording artist spans six decades and she is the only artist to have a number-one single on a Billboard chart in each of those past six decades. This feat was accomplished when "You Haven't Seen the Last of Me" reached number one on the Hot Dance Music chart the week of January 19, 2011. On hearing the news, Cher tweeted: "OMG! "You Haven't Seen The Last Of Me" just went 2 #1 on the BillBoard Dance Chart .... Giving me a #1 hit single in Every Decade SINCE THE 60's."

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