Singer Leona Lewis, a chart-topper more well known in England, was assaulted at a book signing in London.

She was autograph copies of her new autobiography. Witnesses told the BBC that the attacker had waited in line, then walked up with a book. She signed it, and as she looked up he punched her.

I immediately thought of John Lennon, and how the guy that killed him got his autograph on the Double Fantasy album earlier in the afternoon.

Security grabbed the guy, who was laughing. Lewis grabbed her eye.

The X-Factor winner didn't need to stay in the hospital. And I'm not sure what will happen to the guy that threw the punch.

I just know two things. Incidents like this make it harder for everyone that tries to get autographs. And, late night shows are going to try to make a joke with this incident, and her hit "Bleeding Love."