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Avril/Keri mix up!

Keri Hilson was embarrassed on a recent trip to London after a hotel room mix-up led her to walk in on Avril Lavigne while the pop star was relaxing in her suite.

Hilson checked into The May Fair Hotel, but didn't realize her room had been doubled-booked - and she had no idea Lavigne was in the suite when she entered with her entourage of 10.
Hilson reveals her security guard went in first and Lavigne was given a serious fright when she spotted an unknown man in her room.

Hilson tells Britain's Daily Mirror, "My bodyguard went into the bedroom and saw a girl sitting on a chair who almost jumped out of her skin. Her magazines were all laid out on the bed. I thought, 'Wow, this is a good service if it comes with the hotel!'.

"When I was told it was actually Avril Lavigne's room, I said, 'Oh, my God!'"