Lady Gaga (Photo : Reuters)

Lady Gaga is always pushing the envelope. Whether it's by wearing a meat outfit, covering herself with blood, or raunchy lyrics, the Mother Monster is constantly sparking controversy, drama, and trend.

While performing for her Aussie fans in Melbourne on Tuesday night, Gaga debuted a dark and ominous song.

"I wrote it a little while ago, and I've never ever played it for anyone," she told the crowd. "This song is a little sad. But it's about some of the most deep and personal thoughts I've ever had. It's called 'Princess Die,' D-I-E."

She played on a motorcycle-shaped piano as she crooned some of the most disturbing lyrics.

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"Leave the coffin open when I go/And leave my pearls and lipstick on so everybody knows/Pretty will be the photograph I leave/Laying down on famous knives so everybody sees," Gaga sang, adding verses like "I wish that I was strong/I wish that I was wrong/I wish that I could cope, but I took pills and left a note."

One unsettling line goes, "I'll do it in the swimming pool so everybody sees."

Gaga says she isn't sure if this song will make it to the next album and insists that it isn't reflective of the rest of the album.

Check out the clip of the performance.