The boys of Big Time Rush are all in the Young Hollywood Studio to dish on the fourth season of their smash-hit Nickelodeon show and their third studio album, '24/Seven'! They talk about some of the great guest stars from the show, upcoming episodes and music videos (including some directed by Carlos!), and then they respond to a challenge request from one of their Twitter fans -- see which one and how they fare! Hosted by Tracy Behr (@tracybehr)..