Jeong Ji-ho (정지호), or known by her stage name Sio (시오), is a South Korean singer under ATTRAKT. She was the main vocalist and lead dancer of the group FIFTY FIFTY. On November 14, 2022, Sio was introduced as a member of FIFTY FIFTY through the group's music video for "Lovin' Me". The next day, she was individually revealed. FIFTY FIFTY officially debuted on November 18 with their first mini album, titled THE FIFTY.
FIFTY FIFTY Kpop+BreezeWiki
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FIFTY FIFTY, Kpop Wiki
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FIFTY FIFTY, Kpop Wiki
Sio (FIFTY FIFTY), Kpop Wiki
Fifty Fifty (group) - Wikipedia