How the audition will be like?

You have to fill out a forum for them when you audition to see if you are a good candidate. You can audition for different categories like dancing, singing, or modeling but I don't think rapping is one of them because when they plan to make a group they choice the one with the lowest vocal ability and train them more to rap. You don't have to sing and dance at the same time but you could if you want to. You don't sing with a microphone but they will probably video tape you. Alot of auditions are auditiong in groups instead of alone and some companies put on random music and makes the whole group of people dance until they stop it. Don't audition online because how many Kpop artists actually made it by auditioning online? Some trainees don't always end up with what they want and may even be transfered to a different company and you don't get to choose who you debut with. Thats why they choose people that have a good attitude and if you don't or never improve then you get dropped. Its as simple as that and if you're lazy then being a trainee will be the worst and you may even quit because you can't eat all the things you want and if you don't wanna work hard every day until the day you debut and don't think that you'll make it because you're good looking either, alot of good looking people audition all the time and don't make it, alot Kpop idols didn't have superstar look either when they were trainees. Lots of companies look for tall, white skin, bright eyes, tall nose, Asians(mainly east Asians) with nice skin, no acne, skinny people. But if your talent is just amazing they over look your looks. IU was reject by JYP, TOP was reject by YG until he lost weight and tried again, Hara is beautiful but was rejected by JYP, Nichkhun had no talent at all but because of his look s JYP accepted him within two weeks after auditions. But people like Rania’s Jooyi (a girl with an amazing voice) didn't need to have superstar looks to make it in. She was made an offer by YG to be a member of 2NE1 but rejected it and still made it into a different company. I believe you should go audition with the best you can do and practice practice practice!! I know this was more than what you asked but good luck ;)