Complex sentence: For the event, Zion.T partnered with "Infinite Challenge" cast member Haha to perform under the name "Eutteugeottasi (으뜨거따시)" with the song "$ponsor", later released in an album of the songs performed at the event.
Split into simpler sentences: For the event, Zion.T partnered with "Infinite Challenge" cast member Haha to perform the song "$ponsor" as "Eutteugeottasi (으뜨거따시)". The song was later released in an album of the songs performed at the event.