Tara Reid at the Los Angeles Premiere of Dimension Films' "Black Christmas"

In the celebrity equivalent of hell freezing over, Tara Reid got into Hyde last night.

It's a huge step for the famous party girl, who was immediately rejected the last time she hit the Hollywood club. Now, the velvet rope has finally been lifted.

There is an asterisk next to this monumental feat though -- had the club not been holding the after-party for the "Black Christmas" premiere, which Train Wreck Tara was attending, she might still be waiting outside.

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