Crazy Fan Arrested at Britney Spears Concert

Cops tell TMZ a man was arrested last night after jumping on stage during Britney Spears' concert at the Mohegan Sun Arena in Connecticut.

Connecticut State Police say they arrested 20-year-old Kyle King -- who they say had definitely been drinking -- after he charged on stage during Britney's encore performance of "Womanizer."

Security and Brit's backup dancers were able to stop King before he could come in contact with Spears -- and he was arrested for breach of peace.

The CSP says after King was taken into custody, he was being highly uncooperative -- so they also booked him for interfering with police.

He was released this morning after paying a $250 bond and is due in Norwich Superior Court on June 18.

UPDATE: In the video, you can clearly see the man jump on stage and try to bust a move with Britney, before being hauled away by her dancers and security.

UPDATE: Despite what cops previously told us, they now tell us he wasn't booked for interfering with police.