Justin Bieber Sings to Hailey Baldwin Outside of One of London's Famous Sights!

We are loving these new photos of Justin Bieber and Hailey Baldwin!

While taking in the sights in London, England on Tuesday (September 18), Justin, 24, took out his guitar outside of Buckingham Palace and sang to Hailey, 21!

PHOTOS: Check out the latest pics of Hailey Baldwin

A crowd soon formed to watch Justin play the free little show. So cute!

If you missed it, earlier in the day, the couple also checked out one of London’s biggest attractions together!

Check out all the photos from multiple angles of Justin’s performance…