Ranked by who opens a phrase and who picks it up, this list breaks down six ways sibling duo AKMU splits vocal roles from song to song.
AKMU is a duo made of an older brother and a younger sister, but the two voices don't split a song the same way every time. In some tracks Lee Chan-hyuk sets up the scene and Lee Su-hyun widens the feeling that follows; in others it's reversed, with Lee Su-hyun carrying the lead while Lee Chan-hyuk backs it quietly with a lower harmony.
This list picks six songs that make that shift easy to compare — early album cuts, a drama OST, and live versions revisited years apart, ordered so the duo's range of approaches stands out.
How these were picked
- Songs where one voice clearly opens a scene and the other picks it up
- Cases where an early live and a later live of the same song can be compared
- Tracks where the harmony's timing and overlap are easy to hear
- Songs with an official video still up to check for yourself
New to comparing the two? Start with #1 and #2, then move to #3 and #4 to hear how their live chemistry shifted over time.
RE-BYE
People Moving
200% — Official Live
Give Love — Broadcast Live
I Love You
Time and Fallen Leaves
How to choose
Want a pairing where the two trade off in equal measure? Start with #1 and #2. Curious how the same song changes over time? Play #3 and #4 back to back. For a simple, easygoing duet go with #5, and for a quieter pairing where one voice holds back and supports, #6 is the pick.
When comparing, listen for who opens the scene first, how the harmony stacks in the chorus, and where the two voices overlap. The details here reflect when this list was researched and can change, so check the official channels first.
Frequently asked questions
Are AKMU actually siblings?
Yes — Lee Chan-hyuk and Lee Su-hyun are brother and sister, and they were making music together even before they debuted. This list focuses on their public vocal and creative work rather than their private lives.
Are their vocal roles always fixed?
No. Depending on the song, Lee Chan-hyuk sometimes takes on quick, near-rap-paced lines while Lee Su-hyun carries the chorus, and just as often the reverse happens. That flexibility is part of what defines AKMU's vocal sound.
What should I watch for to catch how they divide roles live?
Pay attention to who starts singing first in the intro, how many times the harmony stacks up in the chorus, and the moments where they make eye contact or hand a line off to each other. Official live videos often catch these moments well with their camera work.
Which song should I start with as a first listen?
Start with RE-BYE (#1) and follow it with People Moving (#2) — hearing the same pair completely swap roles between two songs makes the contrast this list is built around obvious right away.
Which songs are best for comparing how a live performance changes over time?
Play the early official live of 200% (#3) next to the later broadcast version of Give Love (#4) to hear how their onstage chemistry became steadier over the years.
Could the song list or video links here change later?
Yes. The details reflect the time this list was researched, and if the agency or official channels change how a video is posted, access to it can change too. Check the official channels for the latest before relying on a specific link.
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