Harry Styles Pauses One Direction Show to Check In on His Sister's Date: Watch

Brian Killian/FilmMagic
Harry Styles of the group One Direction performs at MetLife Stadium on August 5, 2015 in East Rutherford, New Jersey. 

One Direction celebrated the announcement of their next album Made In The A.M. during their performance last night at the Apple Music Festival in London (Sept. 22) -- but Harry had something a little more pressing weighing on his mind.

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"I'm sorry if I seem distracted," he told the crowd. "My sister's here on a date, and I'm trying to keep an eye on it." The protective younger (yes, younger) brother went on to tell his 23-year-old sister Gemma Styles to "behave."

We wouldn't blame Gemma for being embarrassed, though going on a date to a One Direction concert seems like a fraught choice to begin with. Who can compete with the love between 1D and their fans?

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Check out Harry's intervention below: