Rainbow (sometimes stylized as RAINBOW; Korean: 레인보우, Japanese: レインボー) is a seven-member South Korean girl group signed to DSP Media. The members are Kim Jae-kyung, Go Woo-ri, Cho Hyun-young, Kim Ji-sook, No-eul, Oh Seung-ah, and Jung Yoon-hye. On November 12, 2009, the group released their debut EP Gossip Girl; two days later, they made their television debut on the MBC program Show! Music Core.Around January 2009, the first rumors emerged regarding the release of a new girl group from DSP Media. The group was rumored to be composed of seven females, with accompanying reports suggesting that some members had been in training with DSP Media for four years. During late October and early November 2009, DSP Media released daily teasers in the form of pictures of Rainbow, which culminated in the release of a music video teaser for Gossip Girl on November 6, 2009.