The pair have sparked up an unlikely friendship and enjoyed dinner together in LA on Thursday night at Dan Tanas' restaurant, along with Rod's wife Penny Lancaster.
Given both of the lads' reputations, we can imagine the number one topic of conversation was romancing the laydeeez.
But then again, Harry famously likes his women older, while Rod has dated a string of younger women.
The One Direction star jetted out to the States for a holiday after the band completed the UK leg of their Take Me Home tour last week.
The boys have a couple of days respite before they take the tour across Europe, North America and Australasia.
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