Here, in the fourth video of the behind-the-scenes series, Andrew Keenan-Bolger, who plays Crutchie in Newsies, takes the camera backstage on opening night at the Paper Mill. Besides warming up and getting into costume, the newsboys prepare for their performance with an impromptu rap number, complete with break dancing in the streets of Jersey, lead by cast member Ryan Breslin.

To check out part one, a behind-the-scenes look at sitzprobe, click here. For part two, at Newsies dress rehearsal, click here. For part three, where the Newsies take on "The View," click here.

Newsies, according to Paper Mill, is "inspired by the real life 'Newsboy Strike of 1899,' when newsboy Kid Blink led the ragged orphans and runaways known as newsies on a two-week-long action against Joseph Pulitzer, William Randolph Hearst and other powerful newspaper publishers. Set in New York City at the turn of the century, the musical is the tale of newsie Jack Kelly, who dreams of a better life far from the hardship of the streets. But when Pulitzer and Hearst raise distribution prices at the newsies’ expense, Jack finds a cause to fight for and rallies his army of newsies to strike."

To check out the behind-the-scenes action on opening night, look below: