The second season saw a considerable change in the format of the program to match a more standardized arrangement being used across the "Got Talent" franchise. The most notable change made was that the filmed auditions being split into two stages, with the first taking place across a selection of cities, and the second stage operating in Las Vegas under a "bootcamp" format and titled "Las Vegas Callbacks". The second stage's rules focused on those who made it through the first stage being placed into one of two groups - "music" and "variety" - and having to successfully impress the judges across two rounds of performances, each three minutes in length and conducted without interruptions from the judges. The other noted change was to incorporate the live round rules for judges used on other editions of "Got Talent", particularly "Britain's Got Talent": judges now primarily gave feedback on a performance when it had ended, but the public remained in control of who moved on to the next stage in the semi-finals; and performances could now be stopped with buzzers, much like in the auditions, although with participants given the courtesy of a little more time to perform before eventually stopping. Other than these changes, the second season did not incorporate the use of Wildcard acts.