Changes

| style="text-align: center;" |Leader, Main Dancer, Sub Vocal, Center, Visual

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| style="text-align: center;" |Shin Jiyoon

| style="text-align: center;" |March 2, 2002

| style="text-align: center;" |Lead Vocal, Lead Dancer

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| style="text-align: center;" |Kim Jimin

| style="text-align: center;" |May 10, 2002

| style="text-align: center;" |Main Vocal, Main Dancer, Rapper

|-

| style="text-align: center;" |Park Soeun

| style="text-align: center;" |October 26, 2002

| style="text-align: center;" |Main Dancer, Lead Vocal

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| style="text-align: center;" |Lee Jaehee

| style="text-align: center;" |March 18, 2004

| style="text-align: center;" |Lead Rapper, Sub Vocal

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| style="text-align: center;" |Han Jihyo

| style="text-align: center;" |July 12, 2004

| style="text-align: center;" |Lead Vocal, Lead Dancer, FOTG

|-

| style="text-align: center;" |Jo/Cho Hyewon

| style="text-align: center;" |May 31, 2005