VIDEO : Amanda Bynes Parties in L.A. With Fashion Designer Michael Costello

Amanda Bynes is back and looking fantastic!
The Amanda Show alum not only was spotted partying with fashion designer Michael Costello, but she also made a grand return to Twitter, honoring her fun evening with Costello with a twitpic.
Bynes attended The Society of Orphaned Armenian Relief's black-tie gala Sunday where she posed for a picture with her fashion friend. In the photo, which Bynes shared Tuesday, she has long blond hair, a gorgeous black gown and a big smile!