Preview of what's to come at 2015 American Music Awards

LOS ANGELES -- Major names are preparing to take the stage at the 2015 American Music Awards on Sunday in Los Angeles' Microsoft Theater.

The three-hour show is expected to have stars from all genres of music, including rock, country and more.

For a preview with all the stars prepping for the big day, watch entertainment guru George Pennacchio's full story in the video above.