Is k-pop popular in japan?

Question:

if yes.........what are the most popular boy/girl bands?.........

Answer:

Yes, it is getting more and more popular. I am living in Tokyo right now, and I see advertisements with Kara, T-ara, and Tohoshinki. Most young Japanese are very familiar with Big Bang and SNSD. Right now in Ikebukuro, there is a Korea fair at the Seibu mall, where you can eat Korean food and buy Kpop stuff. They have the clothes that Tohoshinki actually wore for their ad in Japan. Also, Japan plays Kdramas on TV. I often see My Girlfriend is a Gumiho dubbed in Japanese.

I think Tohoshinki, Big Bang, SNSD, and Kara are the most popular.