Erin Sanders shows off her shoulder blades as she steps out in a strapless green dress at the How To Train Your Dragon premiere held at the Gibson Amphitheater in Universal City, Calif., on Sunday afternoon (March 21).

The 19-year-old actress plays Camille on the new Nick show, Big Time Rush.

Also pictured below are Nathan Kress, Ashley Argota and James Maslow.

James and Ashley also attended the Brand Equity Showroom Runway Show at LA Fashion Weekend at Sunset Gower Studios later in the day.

15+ pics inside of Erin, James, Nathan and Ashley…