Yayaya

"Yayaya" is a single recorded by South Korean girl group T-ara, released on December 1, 2010. The song peaked at number five on the Gaon Chart, marking T-ara's tenth top-ten entry. It also emerged as one of the best-selling singles released in 2010, amassing approximately 1.5 million downloads. Due to the bombardment of Yeonpyeong earlier that November, the release and promotion for the single along with the album were delayed.

== Background and release == Concept photos promoting the single were released on November 22, 2010. The release was delayed until December 3, 2010, due to the bombardment of Yeonpyeong earlier that November. "Yayaya" was released as the second single for Temptastic on December 1, 2010. The choreography was done by YAMA&HOTCHICKS dance studio, who choreographed some of T-ara's previous hits, including "Bo Peep Bo Peep" and "You're Driving Me Crazy" and "Why Are You Being Like This?". Both "Yayaya" and "Ma Boo", a side-track on the EP, were supposed to be Coed school's debut songs.