Katy Perry was just trying to enjoy her Memorial Day weekend, but a hacker spoiled her fun, taking over her Twitter account and posting vulgarity along with a few noteworthy mentions.

At around 12:30 p.m. Pacific time, the singer retweeted Hillary Clinton’s Memorial Day message, adding her own words of thanks and an American flag emoji. Around five hours later, a message was posted to the account that read: “haha follow @sw4ylol #hackersgonnahack.”

The hackers then posted a slew of random tweets, including slurs and a peace-sign emoji. They also called out Perry’s longstanding “bad blood” with Taylor Swift, tweeting “miss u baby” and tagging Swift’s account.

WATCH: Katy Perry and Orlando Bloom Adorably Sing Happy Birthday to a Friend

The tweets were quickly deleted, and the only remaining evidence is one of the tweets posted to the @sw4ylol account, which was created just two days ago. “Who TF is Katy Perry,” the tweet reads. The account later tweeted a link to a Soundcloud “fresh leak,” namechecking the singer again in what might be an unreleased new song. 

The account later posted a screenshot of an email from SoundCloud, announcing they had removed the track under a copyright claim by Universal Music Group, who reps the singer.

ET has reached out to Perry's reps for comment.

WATCH: Katy Perry and Orlando Bloom Pack on the PDA at Cannes After Selena Gomez Romance Rumors

At least Perry’s Instagram account -- where the 31-year-old singer recently made things social-media-official with boyfriend Orlando Bloom -- remains untouched. See more from the cute couple’s trip to Cannes in the video below.

WATCH: Katy Perry Makes It Instagram Official, Posts First Adorable Pic With Orlando Bloom