Robert Pattinson's engagement to Tahliah Barnett aka FKA Twigs was leaked by T-Pain during an interview with Vulture. Following news that the two were getting married, the "Twilight" star's ex-girlfriend, Kristen Stewart, reportedly freaked out.

T-Pain slipped about the engagement of Robert Pattinson and Tahliah Barnett aka FKA Twigs while he was talking about the British singer's music.

"Well, the first time we even met each other, we met in the studio," the rapper began.

"Her music's changed a lot since then. But she's on tour so much, and anytime I call her, she's in a different place."

"And she's engaged now, so that's about to be a whole other thing," T-Pain revealed.

The reporter conducting the interview then clarified the rapper's revelation about Robert Pattinson and Tahliah Barnett aka FKA Twigs.

"Wait, she's engaged?" the reporter asked.

"Yeah, to ol' Patty (Robert Pattinson). I don't know if she wanted anybody to know that," T-Pain admitted.

The rapper eventually tried to cover up his revelation through an Instagram post.

"Added a little #AprilFools to my interview with Vulture Magazine today. Check it out!!!!" T-Pain posted.

Soon after, news about Robert Pattinson's engagement to Tahliah Barnett aka FKA Twigs spread like wildfire.

According to a report from Hollywood Life, the movie star's former flame, Kristen Stewart, did not take the news lightly. She and her "Twilight" leading man broke up two years ago after she reportedly got into an affair with Rupert Sanders, her married director from "Snow White and the Huntsman."

"When Kristen first heard that Rob and FKA Twigs are engaged, she felt devastated," a source revealed.

"She doesn't want to believe it's true and was seriously hoping that this was just some sort of April Fool's joke. After only five months of dating, she can't believe Rob would propose to FKA. She and Rob dated for years!"