Louis was with his girlfriend Eleanor Calder, just like the last time gave the single finger salute.
Is Eleanor the common thread here?
While it's unclear what happened for sure, it's fairly reasonable to guess that Louis had a reason for getting upset.
In fact, his mom set the record straight on why Louis flipped off the crowd in Montreal last week.
His mum, Johannah Darling, tweeted: "I text him this am asking what had happened. His reply: It was not at fans but at men shouting degrading comments ;( xx"
When one Twitter user noted that Louis was sending a message to the fans, Johannah replied, "No it really wasn't! I don't condone giving 'the birdie' but it must be so hard when folk are so rude to you! X"
Do you think that's what happened to Louis and Eleanor this time to make Lou upset?
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