Lil Kim is back in the studio, and she's brought an old friend with her. The Queen Bee reunited with G-Unit General 50 Cent in the lab last night, perhaps rekindling a musical partnership that has been dormant for years.

"In da studio with my boys @50cent@floydmayweather@clsdash and @thaboyparis lego!!!" she tweeted.

Kim and 50 most famously collaborated on the 2003 single "Magic Stick," which was featured on Kim's album La Bella Mafia. The two famously had a falling out after the success of the song. They reunited in 2007 for the G-Unit track "Wanna Lick," which was conceived as a sequel.

In August, 50 and Kim performed "Magic Stick" together live for the first time in Perth, Australia.

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(Photos: Brad Barket/PictureGroup; Augustin/PictureGroup)