Pink Funky

On April 2, 2015, Mamamoo released a surprise collaboration single with Esna, titled "Ahh Oop!". It was promoted on music shows for two weeks, starting with M! Countdown that same day.[1][2] The retro style music video for "Ahh Oop!" was produced and directed by Digipedi.[2][3]

On June 11, Mamamoo announced the upcoming release of Pink Funky and lead single "Um Oh Ah Yeh".[4] The full track list was revealed on June 17, and the album was released two days later.[5] One reason the album was released in June was so the group could participate in university campus festivals in September, where girl groups are often invited to perform.[6] In the music video for "Um Oh Ah Yeh", three of the members dress up as men, wearing wigs, beards, and prosthetic makeup.[7][8] Park Bo-ram makes a cameo appearance as the girl who tells Solar that Moonbyul is actually a woman.[8]

On June 14, Mamamoo held guerilla concerts in Daehangno and Hongdae, where they performed "Um Oh Ah Yeah" for the first time.[9] The group held a comeback showcase for the album at Ilchi Art Hall in Cheongdam-dong, Seoul on June 18.[10][11] The album was then promoted for six weeks on various music shows, ending with Inkigayo on July 26.[12]

The album was produced by RBW's CEO Kim Do-hoon. "Um Oh Ah Yeh" was written by Kim and three of the Mamamoo members—Solar, Moonbyul, and Hwasa. It is a "funky" R&B dance song with elements of 1990s synthpop. Lyrically, the song is about a girl who is in love with a man who is actually another girl. "Freakin Shoes" is a trap and hip hop song written by Hwasa, with music co-composed by Kim and Seo Jae-woo.[5] "A Little Bit" is a pop ballad and "Self Camera" is a medium tempo R&B song.[13] "No No No", written by Seo Yong-bae and Park Woo-sang, has a 1960s funk rhythm.[7] "Ahh Oop!" was described as a funky dance song with a retro rhythm and blues guitar riff. It was written by Esna, and the lyrics tell men to stop using cliché pick-up lines and treat women with respect.[1][2] The digital album released in South Korea includes an a cappella version of "Um Oh Ah Yeh", as well as instrumentals for "Um Oh Ah Yeh" and "A Little Bit".[14]

The album entered the Gaon Album Chart at number six, and charted at number seven on the Billboard World Albums Chart.[15][16] It was the 19th best selling album in South Korea during the month of June, selling 3,822 physical copies.[17] As of May 2016, it has sold more than 13,000 units.[18][19] "Um Oh Ah Yeh" entered the Gaon Digital Chart at number 22 and peaked at number three the following week, becoming Mamamoo's then-highest charting single.[20][21][22] "Ahh Oop!" entered the Gaon Digital Chart at number 76 and peaked at 67 the following week.[23][24]

The release of Pink Funky solidified Mamamoo's reputation as a girl group who can sing well, and their popularity rose with the success of "Um Oh Ah Yeh".[7] This was partly due to the music video, which went viral on Facebook and "sent shockwaves through the K-pop scene", according to Yonhap's Chung Joo-won.[12][25] Scott Interrante, writing for PopMatters, said the album "features a more polished mainstream sound while retaining the focus of [Mamamoo's] powerful vocals".[8]