Singer surpasses Justin Bieber, Katy Perry and Rihanna on social networking site
The milestone comes less than a year after the singer became the first person to score 10 million followers on the social networking site.
Can’t believe I have 18,000,000 TwitterMonsters, really rad, was just a few years ago I had barely any.
The singer recently confirmed that she plans to release another album later this year.
She added: “I just want to keep going. I’m not as goal obsessed as I am process obsessed. I just want to keep writing music. I’m looking forward to putting out another album and going on tour.”
Last month, Gaga revealed that she had already chosen a name for her new album and had started to pen tunes for the LP. She had previously claimed that she was planning a duet with Elton John for the record.