In July 2010, T-ara added Hwayoung as a seventh member. The stated reason was to give other members some relief from their heavy schedules. It would also allow each member to be away for solo activities from time to time. In November 2010, the group starred in the third season of the reality show "Hello Baby". Later that month, T-ara released "Wae Ireoni". It is the lead single for their first extended play, which is called "Temptastic". "Temptastic" was released in December 2010, along with the single, "Yayaya". T-ara performed on "Music Bank" on December 3 with their new seventh member Hwayoung. They later won awards for "Wae Ireoni" and "Yayaya" on "M Countdown".