aespa reveals new sub-unit songs, performing Karina and Winter's 'Serenade' + Giselle and Ningning's 'Lollipop' live for the first time

aespa unveiled an exciting surprise for fans at their 'SYNK: aeXIS LINE' concert in Osaka today.

The group unveiled their new subunit songs for the first time ever, performing live. Karina and Winter teamed up to perform the energetic 'Serenade,' while Giselle and Ningning debuted the catchy and laidback 'Lollipop.' The duos each demonstrated their chemistry and unique individual concepts.

The new sub-unit songs have left fans excited, with many speculating over whether 'Serenade' and 'Lollipop' will be released officially at some point.

Meanwhile, aespa is currently finishing up their third concert tour 'SYNK: aeXIS LINE.' Following that, the group is set to make a comeback at the end of May, returning after 9 months.

Which sub-unit song was your favorite?