"Laibu" is the word for "concert" in Japanese (live). During late summer my host brother, who is on the 6th grade soccer team, received 3 tickets from his coach to go see a laibu in which he was playing guitar for a local band. The tickets had a ￥1000 value each and allowed you to get into a restaurant down the street from our house where various bands would be playing music all day from 10am to 8pm.
We all walked down together at around 11:30, just in time to catch the end of a group of elderly people belting out traditional songs. Traditional wasn't all that was on the schedule, though. There was also rock, pop, eisa (okinawan music), enka, and a few other types of music that either I don't remember or never knew in the first place.
Two of my friends standing outside the concert
Update (6/14/15): From this laibu I discovered a great song that I still listen to to this day. I cannot find the version I like on youtube or even by searching for it on Google, in fact I think the only place I was able to find it was the Japanese iTunes, if anyone wants it please email me at firstname.lastname@example.org (I know, I know I have had this email since 6th grade) but it is an Okinawan lullaby called, "Warabigami" and the version that I like best is by a group called The TiDA