NTS regular Sofie has been hosting SOS Radio w/ Sofie since 13 December 2013. Sofie has been played over 30 times on NTS, first on 11 January 2017. Sofie's music has been featured on 29 episodes.

Sofie Royer was born in California to Austrian and Iranian parents, and spent time in Vienna studying at music conservatory in her teens. On returning to L.A, she started working at Stones Throw and helped to expand Boiler Room's U.S. operations on the West Coast as a music supervisor. Sofie has since relocated to Vienna for further studies and performs with the Vienna Academic Philharmonie. A deep immersion in hip-hop sample culture has given her a breadth of knowledge for old boogie, smooth soft rock, underrated Italo and classic house, as evidenced in her SOS Tape, released on Stones Throw.