Can you name some popular Chinese singers/groups from the 60's and 70's?

Hey Two Navels,





Gary Cao Ge 鏇规牸 - Superman


鍏╅毣鎴€浜?- Liang Zhi Lian Ren- Two lovers


鑳屽彌 - Bei Pan- Betrayal





There are some, and more at the web sites.