Only One

Tracklist

• 1
  Only One
  3:13

More by Crystal Kay, YOON MIRAE

After Love -First Boyfriend- / Girlfriend

After Love -First Boyfriend- / Girlfriend 2009

Yoonmirae

Yoonmirae 2007

Best

Best 2003

Girl's Night

Girl's Night 2001

Hope & Jump

Hope & Jump 2026

숨

숨 2025

Issues

• 

  O
  (Combined release view)
• 

  O
  Only One

  Digital Media (hi-res)
  8 May 2026
• 

  O
  Only One

  Digital Media
  8 May 2026
• 

  O
  Only One

  Digital Media (music video)
  3 June 2026