Lady Gaga's next album will have a "tremendous lack of maturity."
The Judas singer's last record, Born This Way, incorporated serious lyrical themes — including addressing homosexuality on the title track and her grandfather's death on Edge of Glory — but she has promised that her next album will be more lighthearted.
Speaking during a performance in Perth, Australia on 8 July, she told the crowd: "Let's just say I feel that when I wrote Born This Way, I demonstrated a sense of maturity.
"And I feel that, on the next album, there's a lack of maturity. It's a tremendous lack of maturity or sense of responsibility."
Gaga has already debuted one potential new track, Lady Die, which has proved controversial because of its lyrics, which appear to reference Princess Diana's tragic death in a Paris car crash in 1997.
On the track, Gaga sings: "And wish that I would go / In my rich boyfriend's limo / Right after he proposed / With a 16-carat stone wrapped in rose gold / With the paparazzi all swarming around /So bob head your head for another dead blonde."
Diana and her lover Dodi Fayed both died in the Paris crash, and it is rumoured the businessman had recently proposed to her.
Gaga's Born This Way Ball tour is heading to South Africa for two shows later this year.