Mamamoo (Hangul: 마마무), sometimes stylized as MAMAMOO, is a South Korean girl group formed by Rainbow Bridge World (formerly WA Entertainment) in 2014. The group officially debuted on June 19, 2014 with the song “Mr. Ambiguous”. Their debut was considered by some critics as one of the best K-pop debuts of 2014. They are recognized for their retro, jazz, and R&B concepts and strong vocal performances.
On June 19, Mamamoo released their third mini-album Pink Funky and lead single “Um Oh Ah Yeh”. The song was a commercial success, peaking at number three on the Gaon Chart, becoming their first top three single.