As only the fifth K-pop girl group in history to chart on the Billboard Hot 100, Fifty Fifty achieved the incredible in record time. Following pre-debut single “Lovin’ Me” four days earlier, Fifty Fifty debuted on November 18, 2022 with the lead single “Higher” from their debut EP, The Fifty. Then in March 2023, they charted on the Billboard Hot 100 with their follow-up single, “Cupid.” What makes this feat even more remarkable is that the group hails from a small company, ATTRAKT, and they did not even garner much attention in South Korea until domestic listeners noticed how popular “Cupid” was becoming overseas. It must have been fate! So if you are wondering how old the individual members of Fifty Fifty are, here is the birthday and age for Keena, Saena, Sio, and Aran.

How Old Explained: Age and Birthday for Each of the Fifty Fifty Members

• Keena is 22 years old and was born on July 9, 2002.
• Saena is 20 years old and was born on March 12, 2004.
• Sio is 19 years old and was born on October 6, 2004.
• Aran is 19 years old and was born on October 11, 2004.

With that in mind, at the time that Fifty Fifty debuted in November 2022, their ages were as follows: Keena was 20, Saena was 18, Sio was 18, and Aran was 18. Aran is narrowly the maknae (“youngest person in the group”), but Sio is only five days older! Sio is even the self-described “baby tiger” of the group, so it seems that they enjoy sharing maknae status.

Keena then is the oldest member of the group, but she is actually not the leader. Saena is the leader of Fifty Fifty and also the self-described “mom” of the group, which is surely a valuable quality in a leader. All four members are pretty close in age overall though. If you’re new to the group and need help matching names with faces and birth dates among the Fifty Fifty members, you can consult the graphic below. (Additionally, if you would like to see what the members looked like predebut, we maintain an archive of predebut photos for each member.)

Between birth date and current age, that’s everything you need to know about how old the members of Fifty Fifty are. On average, they’re slightly older than NewJeans, who debuted the same year and reached the Billboard Hot 100 not long before Fifty Fifty reached it, but they’re much younger than Blackpink, another group who is no stranger to the Hot 100.

Next up, check out how proficient in English Fifty Fifty is! Or check out our comprehensive list of Fifty Fifty fun facts and trivia for each member.