Bebe Rexha Gushes Over Meeting 'Idol' Britney Spears at MTV VMAs

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Even pop stars can fangirl every now and then.

Even pop stars can fangirl every now and then.

Bebe Rexha celebrated a huge career highlight during her first trip to the MTV Video Music Awards on Sunday when Britney Spears covered her part in the infectious single "Me, Myself & I" with two social media posts.

WATCH: Britney Spears' Iconic VMA Performances, Ranked -- From '...Baby One More Time' to 'Gimme More'

First, the 26-year-old singer-songwriter tweeted the "flushed" emoji of a blushing, wide-eyed face. Later, she shared an Instagram photo of herself with the 34-year-old diva backstage at Madison Square Garden.

"Amazing moment hearing one of my idols perform 'MM&I' tonight," Rexha wrote in the caption.

Likewise, Rexha made an impression on Spears, who also tweeted about their encounter.

"It was so great meeting you last night, @BebeRexha!" she wrote. "Thank you for letting me sing your amazing song with @G_Eazy!"

Spears performed the hit alongside 27-year-old rapper G-Eazy, who clearly enjoyed the chemistry they shared on stage. Their sultry performance, which included a run through of Spears' Glory hit, "Make Me...," was filled with grinding and nearly got too hot for TV when Spears went in for a full-on crotch grab.

WATCH: Britney Spears Looks Flawless, Grabs G-Eazy's Crotch In MTV VMAs Return Performance

While she's certainly no prude, even Spears had a line, and she drew it when G-Eazy seemingly went in for a kiss only to be rejected.

Watch the video for more on the performance.