Simon Cowell seems to have another hit show on his hands based on the record crowds that turned up to audition for 'The X Factor.'

The first 'X Factor' auditions took place on Sunday in Los Angeles, and the Daily Mail is reporting than an estimated 18,000-plus hopefuls turned out to the LA Memorial Sports Arena.

Freeways were jammed around the arena, and hundreds of contestants even camped overnight in order to get a good spot, according to reports.

A show insider is quoted saying, "The scenes down here are crazy. There are around 18,000 people here, and the numbers are growing by the second. There's gridlock on the freeways into the venue, it's absolute chaos. These auditions are going to be going on well into the night -- there are a lot of people to get through."