[4] After receiving her college degree, Sebastian attended nursing school, but dropped out after only one semester to relocate to Nashville, Tennessee and pursue her music career.

[10] Sebastian sang the National Anthem for the New York Yankees' Spring Training game against the Detroit Tigers in Tampa, Florida on March 28, 2010, and received a congratulatory hug from actor Richard Gere who was in attendance.

[11] On June 8, 2010, Sebastian participated in the 4th Annual Country Weekly Fashion Show and Concert, held at the Wildhorse Saloon in Nashville.

The event raised funds and awareness for Musicians on Call, a nonprofit organization with the mission of bringing music to the bedsides of patients in healthcare facilities.

[14] As of 2019, Sebastian is still part of Lambert's band, most recently accompanying her on the 2018 Livin' Like Hippies Tour and providing backing vocal on 2014's Platinum and 2016's The Weight of These Wings.