E! News correspondent Marc Malkin told Timberlake, who was on the red carpet at the Toronto International Film Festival, that Spears said she was interested in a possible collaboration.
"She did? Sure! Absolutely, absolutely," Timberlake responded.
"I have a 17 month old so I don't get the headline news," he joked. "I apologize for not being in the know. I'm accessible! Give us a call!"