Lauren Sánchez celebrates 55th birthday at Usher show with fiancé Jeff Bezos, Katy Perry and Orlando Bloom

Lauren Sánchez and her billionaire fiancé, Jeff Bezos, celebrated her 55th birthday at an Usher concert at the Kaseya Center in Miami, Fla.

Pals at the celebration including Katy Perry and Orlando Bloom, continued the party after with a swanky dinner at Miami’s newest hotspot, we hear.

In a video from the concert, Usher is seen going over to greet the famous couple — and the crooner gave the Amazon mogul a high-five.

In August, Bezos, Sánchez, Perry, Bloom and Usher were all seen hanging out together on vacation in Dubrovnik, Croatia.

Bezos and Sánchez also grabbed dinner with Usher and his wife, Jennifer Goicoechea, in November.

The birthday gal also posted a picture from the night with friends including Baby2Baby’s Kelly Sawyer, Lydia Kives, Bego Amaya, Veronica Smiley Grazer, Elsa Collins and Elena Blair.

Later, Bezos, Sánchez, Bloom and Perry headed to Sparrow Italia where they were spotted in the restaurant’s exclusive VIP “upper deck” for a private celebration. 

We hear they were joined by further pals, including “Havana,” singer Camila Cabello and music mogul Scooter Braun.

Sánchez received birthday messages from A-list friends online including Kris Jenner, Kim Kardashian, fashion designer Stacey Bendet and Eva Longoria, among others.