Name The Year: East German workers began building the Berlin Wall.?

Questions

They hail from Winnipeg, MAN, and their latest album is "In The Trees"?

They have such hits as "Tom Sawyer" & "Nobody's Hero".?

They opened for Men at work on their Business as Usual Tour in America?

they released the parody 'oh you ate one too' in 1988 which included the song 'cabo wabo'?

They sang "Run to the Hills," and "Powerslave."?