The talent contest's eighth season opens with auditions in New York City, Los Angeles and San Antonio. Mel B., Heidi Klum, Howard Stern and Howie Mandel are the judges.

Hopefuls perform for the judges

Hopefuls perform for the judges.

Auditions continue.

Auditions continue in San Antonio and Chicago.

Auditions continue.

Auditions continue.

Acts compete at the Planet Hollywood Resort and Casino in Las Vegas.

Acts perform at the Planet Hollywood Resort and Casino in Las Vegas.

Hopefuls audition for the judges in Las Vegas.

A visit to Alabama includes stops at Bob Sykes BBQ and Big Bob Gibson's BBQ. Also: The host competes in the Decatur Jaycees Riverfest.

Twelve more talented hopefuls take the stage at Radio City Music Hall, but only four will move on to the semifinals after tomorrow night's elimination.

Twelve performers took the stage last night, but only four will make it through tonight's eliminations to move on to the semifinals.

Twelve more promising performers take the stage at Radio City Music Hall.

Twelve performers took the stage last night, but only four will make it through tonight's eliminations to move on to the semifinals.

Twelve promising performers take the stage to prove that they have what it takes to make it to the semifinals.

Twelve performers took the stage last night, but only four will make it through tonight's eliminations to move on to the semifinals.

After weeks of incredible performances, America's Got Talent has arrived at its final 12 acts before the semi-finals. The Aug. 20 live episode included sibling rivalry, soulful singing, and one performance that one judge said could not be followed.

The final twelve performers took the stage last night, but only four will make it through tonight's eliminations to claim the last remaining slots in the semifinals.

Twelve promising semifinalists take the stage for a shot at the finals and the million-dollar prize.

Twelve performers took the stage last night, but only six can move on to the finals for a chance at AGT's million prize.

The final twelve semifinalists take the stage for a shot at the finals and the million-dollar prize.

The final 12 semifinalists performed last night, but only six will move on to the finals.

The twelve most talented acts in America battle it out for the million prize, but after America votes, some of them will be headed home.

Twelve talented acts took to the stage last night, but after tonight only six will move one step closer to next week's million-dollar finale.

The six finalists battle it out for AGT's million-dollar prize. Featuring special performances from Josh Groban, Luke Bryan, Icona Pop, and Il Divo with Heather Headley.

The winner is named for America's Got Talent's eighth season. they will top five other finalists to take home the million prize and an opportunity to headline a show in Las Vegas.