MAMAMOO – I Love Too

The girls, sniped by their own family on stage. THE TEARS. :) (@2min50)

Some background from the fans:

This song is really meaningful because they themselves composed it as a thank you message for Moomoos. To think that before, Solar’s parents were against her dreams, Byul had no confidence in herself, Wheein almost gave up and Hwasa got laughed at because of her weight but look at them now, they’ve come a very long way. I don’t care if they’re not as popular as the other groups nowadays but I will always and forever be a proud Moomoo. Never letting go.
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Prior to Solar’s birthday, Moomoos held an event for her holding cards with 놓지않을게 on it
Solar was touched and wrote a short song for Moomoos using the name 놓지않을게
After Mamamoo’s first win, Hwasa added her singing and rapping parts
After Mamamoo’s 2nd year anniversary, Moonbyul added her part
And finally the 4 of them sang the song on their concert and that completed the puzzle