Filed under: Avril Lavigne, TMZ Sports

Avril Lavigne was all smiles when she threw out the first pitch before last night’s Tampa Bay Rays game, but she lobbed a few four-letter words at the crowd when a technical glitch messed with her post-game concert.

According to local reports, Avril’s mic didn’t work at the start of her show … and she responded to the cavalcade of boos by yelling obscenities at crowd.

Rays rep Rick Vaughn tells TMZ, “The Rays demand profanity-free
performances from all of our concert performers and we are extremely
disappointed by the language used in last night’s show. It is not
consistent with the family-friendly atmosphere that Tropicana Field is
known for.”

Calls to Lavigne’s rep were not returned.

UPDATE — Several of our readers were in attendance last night and point out via our message board … that while Avril did drop a few F-bombs, they weren’t directed at anyone in particular. Her real fans, it seems, enjoyed the show just fine.