OBSESSED!: Sierra Boggess in 16 Bars
12:42
'Love Never Dies' musical: Interviews with Ramin Karimloo and Sierra Boggess
7:04
OBSESSED!: A Lesson on How Not to Hit a High Note
7:27
The Broadway Sound: West Side Story (Balcony Scene) - BBC Proms 2012
10:23
Rierra - Ramin Karimloo & Sierra Boggess
12:27
The Christine Daaé Diaries, Ep 4! PHANTOM OF THE OPERA, WEST END
5:39
"Not Since High School" Has Sierra Boggess Sung From "Guys and Dolls"
5:10
Sierra Boggess & Michael Ball: All I Ask Of You (2013)
2:23