Lady GaGa performs an acoustic "Telephone" and "Dance in the Dark" and dedicates it to the late Alexander McQueen.

Last night at the 2010 BRIT Awards, our mama monster Lady GaGa took the stage and stole the show!  

Though she was originally planned to perform the original version of "Telephone," in light of recent events with the passing of her friend and inspiration, Alexander McQueen, GaGa decided to change up the performance specifically for him.

Instead of a big performance, GaGa decided to make it more personal and performed on stage completely alone.  She sang an acoustic version of "Telephone" on her piano and even changed up some of the lyrics for McQueen (most cleverly, the lyric 'we miss you so bad, Lee).  

After she got up from the piano, GaGa approached a three-pronged instrument that looked to be a combination of a piano, synthesizer, and a bass.  (Turns out the instrument has a name: Emma).  

This time the song performed was the Fernando Garibay produced track, "Dance in the Dark."  GaGa's vocals were effortless during the entire performance.  

Also on stage with GaGa that evening was a sculpture made by Nick Knight that was a life-size GaGa in some of McQueen's most memorable clothing items that she got to wear.  Check out the video above and pictures below.