Congratulations to Nicole 'Snooki' Polizzi and Jionni LaValle! The happy couple welcomed their second child -- a baby girl! -- into the world today, Sept. 26.

The pint-sized reality star shared the exciting news on Twitter, writing:

Little Giovanna joins big brother Lorenzo, 2, in the Polizzi-LaValle household. The former 'Jersey Shore' star has been candid about her love for her (pretty freaking adorable) family, the impending excitement of their baby girl, and the woes of being pregnant. In fact, just yesterday (Sept. 25), she tweeted about desperately trying anything she could in order to kick-start labor:

Well, it seems to have worked, considering that just a few hours later, Snooki became a proud mama for the second time.

Though Polizzi rose to fame for her hard partying ways on 'Jersey Shore,' the MTV star did a complete 360 once she and LaValle got engaged in 2012 and became parents later that year. Now, the star is strongly focused on her fitness, health and ever-growing family.

Congratulations to the happy family!

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