Amanda Bynes Check Out My NEW PUPPY!!!!

4/11/2011 5:48 PM PDT

Amanda Bynes' New Dog -- Check Out My NEW PUPPY!!!!

Less than a week after the mysterious death of her dog Little Angel ... Amanda Bynes has finally moved on ... to an even CUTER puppy!!!

Amanda introduced her new best friend on Twitter just moments ago ... saying, "I got another pomeranian puppy that I'd like to introduce to you, her name is Tiara :)"

So, we gotta ask ...