Oh my god, this is very painful. Under normal circumstances, there is a risk of being rejected if you apply for a group visa.
If you don’t speak good English, you will most likely be rejected if you go alone.
The travel agency can help you apply for a visa, but it does not guarantee that you will pass.
But if you do not sign up for a group tour, the possibility of being rejected is very high. The visa approval rate is higher if you enter the country as a group
I don’t know how long the music festival will last. Travel agencies and groups usually stay in LAS VEGAS for two or three days.
I think the only way is to find a group that has VEGAS on the itinerary, sign up, and then leave the group during those two days.
Finally, we went back with the group.
This method is very painful, but it is the easiest.
There is an even more painful method.
If you have relatively good financial conditions, you can consider traveling to the United States with a group to obtain a visa.
The premise is that your first US visa is approved
The visa is valid for 1 year, which means that you can freely enter and exit the United States within this year.
When the time comes, find someone who can speak English well and has no problem getting a visa to go with you.
That’s all I can say, I hope it helps you