Rumored newlyweds Justin Bieber and Hailey Baldwin went on a tourist day out in London — and he even busked for her outside Buckingham Palace

• Rumored newlyweds Justin Bieber and Hailey Baldwin were in London for London Fashion Week.
• The young couple had time for some sightseeing, though, as they were spotted out and about in the city.
• The pair were photographed riding the London Eye in a private capsule.
• Bieber later pulled out an acoustic guitar and performed for Baldwin and passersby outside Buckingham Palace.

Are Justin Beieber and Hailey Baldwin married or not? No one really knows for sure.

While it was widely reported that they tied the knot in private, Baldwin denied the news on Twitter.

One thing we do know, though, is that the couple were recently in London — and they had a whale of a time.

The couple were in town for London Fashion Week, where model Baldwin attended the Adidas and JD show after collaborating with the brands as their "style creator."

It wasn't all work and no play, though.

Bieber and Baldwin were trailed by the paparazzi on Tuesday as they visited some of the capital's tourist hotspots — and the singer was even filmed doing some busking outside Buckingham Palace.

The pair were first spotted on the London Eye — the city's giant, Coca-Cola-sponsored Ferris wheel that offers unparalleled views of the River Thames.

Naturally, they had a pod to themselves.

The couple then dropped in on Buckingham Palace — but not to see the queen.

Bieber pulled an acoustic guitar out outside the royal residence and serenaded his fiancee and fans.

A clip of the singer shows him saying, "That's the love of my life right there," while strumming on his guitar.

He played a cover of "Good Good Father" by Chris Tomlin, according to E! News.

An eyewitness told E! News: "They were very affectionate, stopping on street corners to pull each other in close to kiss. They never let each other get too far and were always touching each other and laughing."

Busking is not unfamiliar territory for Bieber, who started out playing on the streets of his native Stratford in Ontario, Canada, when he was just 12 years old.

It's unlikely Bieber needs much spare change in his guitar case now, though — he's worth a reported $265 million.

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