Hey! Cool stuff! I have been getting into more K-pop recently too.
I really like CNblue and FT Island and SHINee is okay too.
I'll have to check out LEDApple, I'm definitely more into rock and indie than pop.
Have you heard of Standing Egg or Busker Busker?
Recently I have been listening to a lot of J-Rock too. I would suggest The Bawdies for CNBlue fans and Straightener and L'arc-en-ciel for FT Island fans.
Some other good J-rock groups to check out are Bump of Chicken, Mucc, Aqua Timez (also good for FT Island fans as well as most K-pop), Galileo Galilei and Greeeen if your'e into a more hip-hop style.
Of course that's holding back my all -time favorites of ASIAN KUNG-FU GENERATION, The Pillows, Sambomaster, Sukima Switch and Chaba.
I love music discussions!