The 46-year-old singer also revealed that she "didn't even know who [Blake] was" before she started as a coach on the show.
"Before I was on The Voice I never heard of him before," Gwen shared. "I’m an O.C. girl! Like, what would I know?"
Gwen also couldn't help but gush over her 39-year-old boyfriend's encyclopedic musical knowledge, explaining, "He knows every single '80s song. He literally is a musical jukebox. He knows everything about music, it's crazy."