I don't know a lot about this, but J Kash and Savan posted about this on instagram.
They are two members from Pentatonix, the press release says they worked with Danny L Harle and Caroline Polachek.
The songs are well crafted and I tend to think we have professional songwriters involved here.
Here's the video for the first single: https://www.youtube.com/watch?v=x8N5X-2xAbg
I really liked bad 4 us, in their debut EP the only names I recognized were a song written/produced by robopop and some songs with vocal production by kuk harrell