Lady Gaga is poking fun at her many eccentricities with the help of  "Saturday Night Live." 

Taking on double-duty for the first time this weekend, she appeared as  a frumpy Apple store worker defending her title of "genius" on a talk show  hosted by Kanye West and Kim Kardashian.  Her character wore a moppy brown  wig, glasses and a baggy flannel shirt. 

But Gaga took on more  controversial parts of her pop stardom, as well.  In another sketch, called  "What?? The Worst Cover Songs of All Time," she played herself, playing herself,  singing a terrible version of Madonna's "Express Yourself."  Gaga has been  criticized by Madonna, among others, for the similarities between the song and  her own "Born This Way." 

She also played herself in the distant future as a washed-up pop star,  spilling to her super, Kenan Thompson, about her formerly glamorous  life. 

For her monologue however, Gaga reminded viewers of her raw vocal  talent.  Dressed in a 30s-style flapper dress, she sang a jazz version of  her single "Applause" mashed-up with "New York, New  York."  

Watch the full episode:

For her musical performances, she sat behind a  piano to sing "Gypsy" and also enlisted R. Kelly to perform their new song "Do  What U Want."  The two got hot and heavy on the stage, with the star  dancing around and straddling the R&B singer.

Check it out below!