May 24, Avril performed for AOL Music's 'Sessions' at AOL Studios in Beverly Hills.
until the link to the video of it I'll put here

I already offers a link of the pictures of it:
http://avril-source.com/gallery/thumbnails.php?album=1454

And a link to one of the previous Sessions AOL with Evan, it was in 2004:
http://music.aol.com/video/avril-lavigne-sessions-aol-full-set/avril-lav...
EDIT:
Finally, the acoustic performance of Avril recorded on May 24 is now available.
During this session she sang Smile, What The Hell, Girlfriend, My Happy Ending, I'm with you.

Here is the link :

http://music.aol.com/sessions/avril-lavigne-smile-sessions/

... Good listening & viewing