'Marry The Night' sensation Lady Gaga has delighted her American Little Monsters by officially unveiling the "1st installment" of tour dates for her current Born This Way Ball.

She took to social networking site Twitter earlier this afternoon (September 5) and told her 29.1 million followers that the wait is finally over:

"i have a very big announcement for US monsters in 1 hr. Surprise!! #EarlyGa THE 1ST INSTALLMENT OF US/CANADA TOUR DATES ARE HERE FOR THE WORLDWIDE SOLDOUT BORN THIS WAY BALL"

Gaga then shared a link to her LittleMonsters.com website, which now displays a list of the venues she will perform at in the new year. Her US and Canadian tour is set to kick off on January 11 in Vancouver and it will run until March 16 where the shows will come to a close in Florida.

She returned to Twitter several minutes later and teased, "More surprises coming LATER!". The full list of tour dates can be seen below.