KARA's fourth Japanese single, "Go Go Summer"

CD Track List 
1. GO GO Summer！(「LG Electronics Optimus Bright」CM Theme Song)
2. Girls Be Ambitious! ( Dariya「Palty」 CM Tie-Up Song）
3. GO GO Summer！(Instrumental)
4. Girls Be Ambitious! (Instrumental)
5. To Me (Bonus track for Limited Edition Track C only!)

DVD Track List 
1.「GO GO Summer! 」Music Clip
2.「GO GO Summer! (Dance Shot Ver.)」Music Clip
3.「GO GO サマー！」Music Clip (Behind-the-scenes)