In honor of the release of Infinite’s sixth mini-album, Infinite Only, I’ll be taking an in-depth look at each track. Every day this week, I’ll review one song, working through the album in chronological order.

1. Eternity (intro)
2. The Eye
3. Air
4. One Day
5. True Love
6. THANK YOU
7. Zero

Though Infinite are most famous for their dance tracks, they’re also one of the few k-pop groups that have a remarkably consistent record of releasing dynamite ballads. Their lush production style fits ballads perfectly, as do their main vocalists. I prefer Woohyun’s voice when it’s belting out intense power notes as part of aggressive dance anthems, but there’s no denying that the guy was born to sing ballads. Sungkyu’s emotive tone is just as effective, and L has also grown into quite a balladeer over the years.

As Infinite Only‘s representative ballad, Thank You ably fulfills its role. When the dust clears, I’m not sure it’ll be counted among the very best that Infinite has released in this style (namely, Diamond, Between Me & You and Only Tears), but it’s yet another example of the group elevating an otherwise straightforward track with the sheer force of their performance skill.

Kicking off with acoustic guitar, the first verse makes effective use of L’s underrated vocals. He’s developed a surprising grit to his tone over the years that comes across more mature and world-weary than he’s usually given credit for. This brings us into the first gorgeous chorus, which is flawlessly mixed to bring out the full power of the group’s layered harmonies. It’s everything you’d expect from an Infinite ballad, but it still packs a punch. My favorite instrumental touch is the extended, bluesy electric guitar solo that hits just before the final chorus. The guys know how to bring the drama, and Thank You is a strong example of that theatricality at work.