Miley Cyrus seems to be making it a point to gain new enemies. After her infamous social media war with Irish rocker Sinead O’Connor last week, the twerking singer may have a new target: Today host Matt Lauer!

Cyrus appeared on the program this morning, but seemed to take offense when Lauer’s questions turned to her overly sexual image and recent bad behavior. Instead of changing the subject, Cyrus responded with a low blow about Lauer's sex life.

When Lauer asked about her hyper-sexual image and whether it was a phase, Cyrus said: “Well, I heard when you turn 40, things start to go a lot less sexual. I heard that’s when people don’t have sex anymore.” When the Today host revealed that he’s 55, the “Wrecking Ball” singer quipped: “Oh, well then you’re really, definitely not sexual.”

Miley Cyrus Sinead O'Connor Miley Cyrus strikes back to Sinead O'Connors advice!

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Her biting comments toward Lauer are yet another way Cyrus continues to stir controversy. After '90s singer Sinead O’Connor posted an open letter to her and encouraged her to stop “prostituting” herself for the music business, Cyrus retweeted O’Connor’s notorious Twitter threat to commit suicide two years ago and wrote: “Before Amanda Bynes…there was…”

That post led to a second open letter from O’Connor, who threatened a lawsuit unless the tweets were removed. “I am staggered that any 20 yr old woman of the 21st century could behave in such a dangerous and irresponsible manner. [To] signal that those who have suffered or do suffer mental health problems are to be mocked and have their opinions invalidated,” she wrote. "Have you no sense of danger at all? or responsibility? Remove your tweets immediately or you will hear from my lawyers. I am certain you will be hearing from all manner of mental health advocacy groups also. It is not acceptable to mock any person for having suffered."

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In response, Cyrus tweeted back that she didn’t have time for an online feud. "Sinead. I don't have time to write you an open letter cause I'm hosting & performing on SNL this week,” she wrote. “So if youd like to meet up and talk lemme know in your next letter :).” The proposal was immediately shot down by O’Connor, but Cyrus made no reference to the social media war in her guest hosting appearance last week on Saturday Night Live.

Cyrus’ latest album, Bangerz, was officially released last Friday.