Name The Year: Soyuz T-2 is launched?

Questions

70s Tune: ``Trapped in a mine when that caved in & everyone knows that ...''?

70s Tune: ``You don't know me so well, & it's not hard to tell when you know...''?

70s Tune: ``You were a child of the sun & the sky & the deep blue sea''?

80s Artists: Sang: "...all the cops in the doughnut shops..."?

80s Artists: Sang: "...and you say it's going to happen now, but when exactly do you mean"?