1+1=1

1+1=1 is a collaborative extended play (EP) by South Korean singer-songwriter HyunA (현아) and South Korean rapper DAWN (던). The EP was released on September 9, 2021, through P Nation and distributed by Kakao Entertainment. The EP consists four tracks, including the title track “PING PONG”.

On August 30, P Nation confirmed that HyunA and DAWN will release a duet EP. The next day, P Nation unveiled the tracklisting to the EP on their official social media accounts, revealing “PING PONG” as the lead single.

The EP was released on September 9 through many Korean online music services, including Melon. For the global market, the EP was made available on iTunes and Spotify. It was also released in physical format.