It's a mix!

 

Believer -Kihyun

https://www.youtube.com/watch?v=G4MjPyGme8g

Chandelier - Kim Jaehwan

https://www.youtube.com/watch?v=04ZxzSZ-Uvw

Surrender - Natalie Taylor

https://www.youtube.com/watch?v=Dbf8PYnzRdo

Erase you - Catrien

https://www.youtube.com/watch?v=GLgzgFAc2Hw

Always - Owl City

https://www.youtube.com/watch?v=nMsSm55jWHs

My Everything - Colby Drew

https://www.youtube.com/watch?v=edkIu9YOPAY

Suffocate - Hayd

https://www.youtube.com/watch?v=gFHtdYfSENk

Leaving the Lights on - Etham Basden

https://www.youtube.com/watch?v=k9-viYySSdE