November 15th 2019, SMA NEGERI 15 SURABAYA held their annual arts performance, Libels Party 2k19 or commonly known as Liberty 2k19. This Liberty 2k19 theme is "Aetherealm". "Aetherealm" comes from 3 words; aether, ethereal, and realm. That means a magnificent world beyond the sky. And this year's Libels Party is ready to make you all fascinated by the beauty of our world.

This year, Liberty 2k19 invited three Guest Stars which are Didi Kempot a campursari singer from Central Java also a producer and musician, Kahitna A Phenomenal music group from Bandung, Indonesia that was formed in 1986 and founded by Yovie Widianto and Reality Club an indie rock music group from Indonesia. not only the appearance of the guest star awaited by the visitors. but there are also other various performances, such as extracurriculars at SMA Negeri 15 Surabaya, the winner of solo vocal competition and band competition which is also entertaining and amazing. in addition there are also various food stands, drinks, Friday market, art space and photo booth that is no less interesting.

Liberty this year invites enthusiasm from various groups ranging from young people to the elderly. This can be seen from the ticket sales to the Liberty venue on Friday which was very crowded yesterday. all the audience was very carried away in the atmosphere of Liberty and also sang along with the guest stars. that night became an unforgettable night and kept its own memories for the visitors.