Alex & Sierra
别名：
Alex & Sierra的专辑
Gravity (The X Factor USA Performance) - Single2013-12-11
The X Factor USA Season 3 Live Performances2013-12-19
Scarecrow2014-06-23
Scarecrow2014-06-23
It's About Us2014-10-06
It's About Us2014-10-07
Toxic2016-08-05
Take Me2016-08-19
You're The One That I Want2016-09-02
Say My Name2016-09-16
As Seen on TV2016-09-30