The 35-year-old actress says she likes the way Timberlake, an accomplished musician and actor in his own right, takes interest in her career, reported Femalefirst.
"He's been such a huge supporter of this all along. He knows how much the material is interesting to me and what a great opportunity this is for me to do something really different," Biel says.
Biel tied the knot with Timberlake in 2012. They both share a baby boy together.