What are the songs from the Fortnite Marshmello Event?
The first is called Alone also has 1 billion clicks
There's currently an official playlist of the songs played in the live event on iTunes.
If you look at iTunes now, you'll probably see it.
Below I have a picture of it. It goes on for half an hour.
The hot ones are:
alone
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Chasing Colors
flashbacks
Everyday (feat. Logic)
Fly
Happier
That's all in the right order, I hope I could help.