Madison Square Garden will get more of Lady Gaga ‘s “mayhem.”

Fresh off playing six electrifying shows at the historic venue , the pop music superstar announced two more New York City dates to the second leg of her sold-out Mayhem Ball Tour next year.

“The MAYHEM Ball” will hit MSG on March 19 and March 20, in addition to 19 other dates added to the tour. Other stops include Los Angeles, Boston, Washington, D.C., and Montreal, among other North American cities.

Tickets for the new string of shows — kicking off Feb. 14 in Glendale, Ariz. — will be available for presale beginning on Friday. Fans must sign up for the presale by 10 a.m. ET on Thursday.

Additional presales begin on Wednesday for Citi cardmembers and Thursday for Verizon customers.

When first announcing her internati

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