The showcase for the release of the new song "One Last Time" from 'Golden Girls' was held on November 23 at the KBS New Building Public Hall in Yeongdeungpo-gu, Seoul.

The showcase will be revealed through episode 5 on the show, and the new track will be released on December 1.

'Golden Girls' is J.Y. Park's latest project, where he has brought four revered veteran singers - Park Mi Kyung, Shin Hyo Bum, Lee Eun Mi, and Insooni - to create another legendary girl group. 

The members' journey, coming together to form a girl group, has been revealed in episodes 1 to 3 with J.Y. Park personally recruiting the members in episodes 1 and 2. After the team was formed, the members practiced and learned the girl group song styles to prepare for their debut.
 
At the showcase, the Golden Girls impressed the audience with their exceptional vocal skills and putting on an impeccable performance.

The new program, 'Golden Girls,' has been garnering much attention since it was announced. Many netizens have shown interest and support in the new endeavors of Korea's four most powerful veteran vocalists.

K-netizens commented, "So we're going to watch J.Y. Park train these four vocalists after watching his performance for the Blue Dragon Awards?" "The timing is so ironic," "I can't miss out on this," "He needs to be trained himself though," "I forgot about this show, I should watch it!!" "I'm watching this, this is aired on KBS right?" "This is so hilarious," "J.Y. Park definitely has star power," "He might say 'don't sing like me' lol," "Well I think coaching and directing is a different thing," and "J.Y. Park is good at singing."