Things got 'complicated' this weekend for Avril Lavigne.

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Details remain sketchy, but a violent altercation of some sort took place between Avril Lavigne and another woman early Sunday morning outside of a hotel in Hollywood, CA.  Avril has confirmed via twitter that she was hospitalized and has a new scar on her face.  She also is reportedly sporting a black eye, bruises, had a bloody nose,  amd lost chunks of her hair.

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