Episode 6 of 'America's Got Talent' 2013 will feature a the contestant "Captain Explosion," who will perform a life-threatening act, according to NBC's preview. 

The promo is centered around Captain Explosion's act, which is performed outside the studio. After host Nick Cannon asks him, "You ready to blow up?" he walks out to a box in the middle of a field, while the judges look on. Judge Heidi Klum says, "A little bit nuts, no?" and tells fellow judge Howard Stern that she's going to hide behind him.

Cannon asks if everybody has their earplugs in as Captain Explosion gets inside the box. The box then explodes into fire and ash while everybody screams. Judge Howie Mandel asks, "Is he okay?" to which Stern responds, "No, he's not."

View the pulse-pounding 30-second promo here:

As for last week's acts, many scenes from the episode were uploaded to YouTube, and the clips that were most popular with the public were revealed. Rapper duo Lil Mike and Funny Bone have racked up the most views, with more than 422,000 as of Tuesday morning. The pair performed an original song called Do the Rain Dance.

Coming in at a distant second was 17-year-old dancing act Dylan Wilson. The dancer got over 204,000 views for his wavy-armed freestyle moves. Quirky singer, songwriter Sully Dunn's original song, which addressed dropping out of college, came in third with over 140,000 views, though it received mixed reactions from the judges. 

Not far behind Dunn in video views was Marines-turned-classic rock band American Hitmen with their rendition of Lynyrd Skynyrd's Simple Man. Ten-year-old DJ and rapper duo 2Unique was the fifth-most-viewed act of last week with over 95,000 views.

Stats like this may be good indicators for which acts America will vote for in the coming rounds.

America's Got Talent will air the two-hour sixth episode of the season on Tuesday at 9 p.m. on NBC. Watch the fifth episode of America's Got Talent 2013 in its entirety here:

Tags: Americas Got Talent Spoilers