Singer Katy Perry arrives at the 55th annual Grammy Awards in Los Angeles, California.

London - Katy Perry's parents are very "comfortable" with John Mayer.

The brunette beauty and her singer boyfriend were joined by her mother and father, Mary and Keith Hudson, for dinner at Mr. Chow in Beverly Hills after the Grammy Awards on February 10 and the quartet seemed to enjoy one another's company.

A source told "Katy couldn't have looked happier. She was just beaming with a huge smile on her face. Katy, John and her parents seemed to be celebrating the night. They were laughing a lot and looked really at ease and comfortable with each other.

"They all looked relaxed, especially Katy and John. They were holding hands and when they weren't, John had his arm around Katy. Before they left, John leaned into Katy and gave her a kiss on the forehead - it was cute. And they make a gorgeous looking couple. They really compliment each other."

Katy - who was previously married to Russell Brand - took John to meet her parents in her home town of Santa Barbara last November after four months together and it was said at the time that the Christian pastors approved of their daughter's new partner.

A source said: "Katy has never been happier. She's in a really good place with John. They are planning on recording a song together at John's new studio in Hollywood.

"Katy's parents also really like John. They prefer him over Russell. They thought Russell was too temperamental." - Bang Showbiz