Katy Perry serious about Mayer

Katy Perry is reportedly so serious about her relationship with John Mayer, she has given him a key to her Los Angeles home.

The relationship between the singers has heated up since they recently rekindled their romance following a brief split and Katy is so serious about John that she made the romantic gesture.

A source told The Sun newspaper: 'John thinks it is easier to stay in hotels rather than his own L.A. pad. But Katy insists he should stay with her. She thinks it makes sense.'

The pair recently took a trip to Las Vegas with friends and joked about getting married in an Elvis chapel but didn't go through with it.

However, they did enjoy a night out at the notorious Spearmint Rhino strip club with friends.

A source said 'They were together in a group. As for whether they got dances, they were in a strip club ... you do the math.

'The group had so much fun, they stayed until 5 a.m.'

Katy, 27, was thought to have been left heartbroken when John - who has dated a string of Hollywood beauties, including Jennifer Aniston, Jessica Simpson, Taylor Swift and Cameron Diaz - ended their brief fling at the end of August.

A source said at the time: 'She is making it seem like it wasn't serious with John, but she is hurt.'