you can tell your best friend to help you to buy the popular clothes.有错吗?

you can tell your best friend to help you to buy the popular clothes.
把to去掉,因为语法：help sb.do sth.在popular前加一个most或去掉the,因为在这里要不然用最高级,要不用原级
就是you can tell your best friend to help you buy the most popular clothes.
或you can tell your best friend to help you buy popular clothes