Their release comes just days after an extended advert introduced British judge Cheryl Cole and new presenter Steve Jones to the American audience, alongside Simon Cowell, Paula Abdul and Antonio 'L.A.' Reid.
The first short advert bills the show's launch as an "extraordinary event", before Cowell claims: "It's going to be much, much bigger than that."
Watch the first new promo for The X Factor USA below:
Meanwhile, the second video, titled 'A Change is Gonna Come', takes a look at hopefuls as they prepare to audition in Seattle.
Speaking in the VT, executive producer Rob Wade says of the talent: "We're definitely getting an edgier vibe up here - the kind of music they listen to, the song's they are singing."
Watch The X Factor USA: 'A Change is Gonna Come' video below:
The X Factor USA launches on Fox in September, while open auditions continue in Dallas on May 26.
> Check out our complete coverage of The X Factor USA