Her sweat-it out song
"I listen to a lot of Usher, Pink and Katy Perry when I work out," Spears, 31, tells PEOPLE. "They're so inspiring!"
Her favorite jam with her sons
"The boys love Bruno Mars' Uptown Funk – because he's so funky," she says.
Her mood music
"My favorite romantic, sexy song is [India Arie's] Brown Skin – it's all about soul," says Spears, who is dating producer Charlie Ebersol, 32.