Check out Serena Williams' rap debut

When we first heard TMZ reporting that Serena Williams had recorded a song (reportedly in the studio of Baltimore Ravens tackle Bryant McKinnie), we thought, "Serena, is you really rappin'?"

And sure enough, she addresses that same question in the song, where she also name-drops her sister: "I win, I really mean it. Swag out this world, you should call me Venus."

For her part, Serena doesn't seem too excited about the leak, tweeting at McKinnie, "Dear @BryantMckinnie I hate you. Lol."