The ICONIC mood sampler track for Red Velvet's newest comeback, Birthday, is a certified BOP, and upon first listen, I just KNEW that I had to mash this up with Bella Poarch's song, Build A B*tch. I even added Rosé's scrapped verse at the end hihi~ Enjoy!!

Songs used:
Build A B*tch -    • Bella Poarch - Build A B*tch (Officia...  
On A Ride -    • 롤러코스터 On A Ride  

All credits go to the artists and to SM Entertainment and WMG.