Jennifer Lopez: Recording Studio with Robin Thicke!

Jennifer Lopez heads inside a recording studio for a day of singing on Sunday (September 15) in Hollywood.

The 44-year-old entertainer and American Idol judge was joined at the studio by Robin Thicke!

PHOTOS: Check out the latest pics of Jennifer Lopez

“Uh oh…walked into the studio to find this: @JLo @robinthicke …can’t be nothing but trouble… :)” JLo‘s sister Lynda tweeted, along with a pic of the duo rocking out together. Could there be a duet in the works?!

Jennifer is currently working on her eighth studio album.

FYI: Jennifer is wearing Jennifer Fisher jewelry and Lana Jewelry earrings.

20+ pictures inside of Jennifer Lopez at a recording studio with Robin Thicke…