Justin Timberlake golf hat swing exclusive

Justin Timberlake - AKA the original Justin Bieber - penciled a day at the Toluca Lake driving range into his busy schedule over the weekend... guess he's got all that sexual energy leftover from the Bad Teacher set to burn off!

Despite rumors of a split, quasi-girlfriend Jessica Biel did spend the night at his pad recently. Think she's jealous JT is working with his ex Cam?