The 'Applause' star has confirmed dates for her 'artRAVE: The ARTPOP Ball' Arena Tour.
Lady Gaga is back on Twitter
Gaga's 17 million followers were bemused to see a tweet on Monday morning directing the singer's fans to a website with the promise of free Apple products.
The tweet read: 'Monsters, I'm giving away FREE iPad2's to each one of you in the spirit of the holidays :)'.
Two further tweets were spotted soon after but they were soon spotted by Gaga's representatives, who promptly removed the tweets.
Gaga has since changed her login details to prevent further unauthorised posts and has now assured fans everything is back to normal.
She tweeted, 'Phew. The hacking is over! And just in time, I'm on my way to Japan! So excited to spend Xmastime with my TokyoMonsters!'
The 'Bad Romance' singer says she is creating a "multimedia experience" with her forthcoming third record
The 'Bad Romance' star has apparently been going "completely starkers" in the studio
The singer has unveiled name of new record and new tattoo