SUPER long Text Message freezing phone - How Can I delete it? HELP ASAP!!

[Kevin8se7en]

I received a text message that is 53 text messages long. I tried opening it, and it froze my phone. I've tried to delete it, turning off my phone, etc...
It's slow as hell and I cant even access Chomp SMS or the regular Android messaging app, without it freezing my phone.

Droid Incredible with all tasks killed.

I need help ASAP