Taylor Momsen continues to open mouth, forget pants

taylor-momsen-spin.jpgWhat time is it? Oh, just about a quarter past intervention.

Once and future "Gossip Girl" star -- and current rock ingenue -- Taylor Momsen is spewing more nonsensical vitriol in her bid to be taken seriously and/or alienate fans.

The Pretty Reckless frontwoman sat down with Spin and, among other things, she had some choice words for Rihanna...