It's around 3-4 years ago.
The background is an old school and greenery.
There are about 5 singers.
The song contains these words/lyrics:
當年 我.....
......
(chorus)
前面有‘骨’頭路 ....預告
.....紀念册
好似由1個女组合and1男组合一齊唱的。(not so sure)(I think have hot cha inside..?)