The 22-year-old mother wore a telling shirt, letting the world know that she was "off duty" for the holiday and she was going to enjoy every minute of it.
Maci and her NYE party pals shared pics and videos from their Miami vacation, where they stayed at the Fountainbleau hotel--and it looks like they had a REALLY good time!
Katie Holmes was in the same city for the holiday, but it looks like they had very different "parties" planned.
While the two are both moms, Maci's 5-year-old son Bentley was reportedly with his dad for the weekend and Katie had her daughter Suri Cruise with her, so it seems they both tailored their celebrations accordingly.
Check out the video below to see Maci dancing around in her hotel room.
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Gallery | Celebs Celebrate New Year's Eve