f(x) released their 4th studio album '4 Walls' on October 27th, 2015
SM had rented out a studio a week in advance to innovative promotions like '4 Walls: The Exhibit',
collaborated with underground DJs in Korea to remix 4 Walls and many more
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There were also considerable buzz over Carly Rae's E MO TION reject making to this LP,
same with Zara Larsson's unreleased demo, "Cash Me Out"
Overshadowed by REBOOT and Lionheart, but it's not their fault
REBOOT was such a great summer album though, but this album stands well in their discography. I was honestly shocked that they pulled off the house music so well.
4 Walls, X, Papi, and When I'm Alone are all great.
