LILY ALLEN’s US tour is in doubt after the singer’s latest spat with the paparazzi.

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Thursday’s incident kicked off when a photographer allegedly shunted his car into the back of Allen’s.

The Smile singer was then caught on camera punching, kicking and chucking a bottle at the man, who appears to take it all with commendable calmness.

If the photographer decides to press charges, it is likely US authorities will deny Allen a visa for her stint across the Atlantic, which is scheduled to start next month in support of the It’s Not Me album.

Something similar happened back in 2007 when Allen was stopped from entering the US after being arrested for allegedly hitting out at a snapper.