The singer was performing in Munich when she appeared to spot someone carrying a sign saying, "Will you marry me?"

She read out the message, but replied: "I can't marry you because I'm already getting married, so I can't, but I appreciate it, thank you."

She then flashed what looked like an engagement ring to the crowd - prompting cheers.

The exchange was captured on camera and shared on social media.

Adele has been in a relationship with US sports agent Rich Paul since 2021 and was previously married to Simon Konecki, with whom she shares a son.

The 36-year-old has been pictured out with Paul at events such as NBA games and told Elle magazine in 2022: "I've never been in love like this. I'm obsessed with him."

Paul is founder of Klutch Sports Group and counts basketball legend LeBron James among his clients.

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Adele is currently playing a 10-gig stint at a specially built open-air arena in the southern German city.

She recently said she intends on taking an "big break" from music when her long-running residency at Caesar's Palace in Las Vegas ends in November.