UnScramble this Word: x c u r e t e e?

Questions

Name The Year: "Karma Chameleon," "Jump," "Footloose," and "Hello" all hit #1 this year?

Name The Year: "Kyrie," "Sara," "Venus," and "Amanda" all hit #1 this year?

Name The Year: "The Twist," "The Locomotion," and "The Monster Mash" all hit #1 this year?

Name The Year: "Vogue," "Hold On," "Blaze of Glory," and "Ice Ice Baby" all hit #1 this year?

Name this 60s tune: "Hello lamppost, Whatcha knowin "?