London, UK - Spotted! Kate Moss was seen attending Johnny Depp's rock performance in England. Are sparks flying between these two again?

On Tuesday, Depp rejoined his pal Jeff Beck to perform onstage at Sheffield City Hall for the third night in a row.

Deep's guitar shredding comes amid the ongoing jury deliberations in his defamation trial against ex-wife Amber Heard.

As the actor jammed out on stage, he had a very particular admirer in the crowd.

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According to People, Depp's ex Moss attended the set and was snapped by photographers leaving the venue alone after spending some time backstage.

The supermodel's appearance at her ex-boyfriend's performance follows her crucial testimony during the bombshell trial.

On May 24, the 48-year-old testified via video as a witness for Depp.

The British model, who dated Depp from 1994 to 1998, addressed a reference Heard made in her previous testimony about Moss and "stairs."

The alleged incident occurred while Depp and Moss were vacationing at a resort in Jamaica, and per the model's testimony, she fell – but he didn't push her.

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"We were leaving the room and Johnny left the room before I did. There had been a rainstorm. As I left the room, I slid down the stairs and I hurt my back," Moss began.

"I screamed because I didn't know what happened to me and I was in pain. He came running back to help me and carried me to my room and got me medical attention."

"He never pushed me, kicked me or threw me down any stairs," Moss ended while under oath.

Depp and Moss are said to still be on good terms. Even though it's been over 20 years since the two last dated - never say never that the flame could be reigniting.

Just ask Jennifer Lopez and Ben Affleck.