UPDATE: Yep, they did it! No cold feet here. Spy Kids alum Alexa Vega and her Big Time Rush love Carlos Pena Jr. previewed their nuptials in a series of social media posts (see below) and finally did the deed on Saturday, January 4. As Alexa, 25, proudly tweeted early on January 5, "Mrs. PENAVEGA." According to People, they reportedly exchanged vows at the Grand Velas Riviera Nayarit in Puerto Vallarta, Mexico. Thanks to actress Challen Cates and acting coach Aaron McPherson, wedding guests who posted photos on social media, we also got a look at Alexa's beautiful beachy dress. See the pics below.

Congrats to the happy couple!

Original story:

If you are in Mexico and hear wedding bells tomorrow, January 4, they might just be for former child star Alexa Vega (of Spy Kids fame) and her handsome soon-to-be hubby, Carlos Pena Jr.

The hot couple is currently touring the tropical country in the new year, having hit up Cabo San Lucas a few days ago.

And last night, January 2, Carlos — an actor and singer known for his role in Nickelodeon series Big Time Rush — posted to Instagram a beautiful snapshot of a sunny Mexico beach, writing that the nuptials would be held today: "Yes! I can't wait for tomorrow. #lex&loswedding Good night!"

Today, however, Alexa corrected him on Twitter: "Baby doll… Pretty sure wedding is tomorrow."

Also, someone might wanna tell the 24-year-old stud that you can't use punctuation in hashtags.

The two lovebirds have actually had a bit of a whirlwind romance — they just got engaged three months ago. But hey, when you know, you know!

This will actually be the second wedding for the Machete Kills actress — she was married to Napoleon Dynamite producer Sean Covel from 2010 to 2012.

In any case, and no matter what the wedding date, our congrats to the nearly-weds!

Dan Clarendon is an assistant editor at Wetpaint Entertainment. Follow him on Twitter and Google+!