I'm gonna add to this with some additions that are missing currently.
Haloo Helsinki is like the peak of finnish pop-rock currently. They have an amazing catalogue of complete bangers, that I feel have quite rich language as well.
PMMP is one of the most iconic finnish pop bands ever. They sold out multiple arenas after not making music or touring for a decade. Incredibly high quality music with really deep lyricism. They also sing really clearly most of the time so it should be pretty good for learning the language.
Gonna also give a mention to Happoradio, CMX, and Apulanta, which are all great finnish rock bands.
Do you have any good Finnish song recommendations? I'm wanting to learn Finnish and listening to songs in a language helps me learn faster. Love your blog by the way
Terve! Kiva, että pidät blogista. :)
Thinking of just lyrics, I think Zen Café, Happoradio, Arttu Wiskari, and Johanna Kurkela have some pretty interesting ones. Leevi and the Leavings from the previous ask, too. Juice Leskinen, Irwin Goodman.
Honestly, it also depends on what kind of music you like.
Perhaps my followers could share some of their favourite Finnish language music? I honestly know nothing about today's popular music in Finland.
For a learner, I would advise focusing on lyrics in kirjakieli (grammatically correct standard Finnish) or yleiskieli (spoken Finnish close to kirjakieli) rather than anything in obvious puhekieli (spoken Finnish dialects which can be pretty different from standard Finnish).