Japanese Boy Groups

Are there any Japanese pop boy groups that are similar to Korean boy groups like Big Bang, TVXQ, 2PM, Teen Top ? You know... that do a lot of dancing and singing and what not. I've been searching around and I run into pop/rock or pop, but never from a boy group I've heard like one Arashi song (Monster), but are there any groups that have an average age younger than them? I've been trying to find a group like that, but I've yet to find one. If anyone knows of Japanese groups like this please let me know!!

I agree with the suggestion of Hey! Say! Jump

I think the members of Kis-my-ft2 are young as well. ^^

Ohokay. Thank you. I'm going to go check out these groups. :D

KAT-TUN is my bias, but if you're wanting younger, Hey! Say! Jump or Kis-my-ft2.