Jennifer Hudson promised her Atlanta crowd some surprises, and girlfriend delivered.

She performed a duet with legendary singer and original Dreamgirls singer, Jennifer Holliday, where they both belted out the song, “And I’m Telling You I’m Not Going”.

Check out the performance of the song from last night:

On fan said, “History has been made!” While another said, “I was there, what an awesome show.”

Thanks for the treat, ladies!

[Image via MSNBC]