Just last month, Britney participated in a fan Q&A for Most Requested Live with Romeo where she was asked to reveal her dream collaborators.
As it turns out, the guy who wrote the breakup ballad "Cry Me A River" was on her list.
"Aerosmith seems really good and bright. He's a genius I think. He's very rock n' roll. He sings from his soul," Britney explained. "Gwen Stefani, I think she's great."
And then she added the most important name (drumroll, please), "Justin Timberlake is very good."