Justin Timberlake may be a megastar, but the "SexyBack" singer still struggles to accept his artistry.

"It's painful for me to either watch or listen to myself," Timberlake told us recently. "But even when you're not fully satisfied with the outcome, that's what makes you hungry. But there is gratification in the fact that you a. make people smile, b. make people dance, c. make people laugh or d. make people make babies."

Baby-making aside, Timberlake has a very unromantic take on the acting arena.

"Acting is a totally different process than music. Music is a study in the romanticizing of human behavior," he explained. "I have found that acting is like the un-romanticizing, that’s not a word, it is the opposite of the romantics of human behavior."

Perhaps JT just needs a good love scene, as it seems the aspiring actor only chooses gritty roles like a drug-dealing gang member in “Alpha Dog," a disfigured Iraq war veteran in “Southland Tales” and a hairy, Speedo-wearing hockey player in “Love Guru."