See clips of Styles at Horan’s Manchester concert below. Harry singing and dancing during Stockholm Syndrome at Niall's concert at the Co-op Live in Manchester tonight ...

Bandmates for life. Harry Styles supported his fellow One Direction alum, Niall Horan, at Horan’s concert at Co-op Live in Manchester, England, on Tuesday. Styles, 30, was seen singing and ...

Harry Styles was spotted at his former bandmate Niall Horan’s concert in Manchester, singing along to Horan’s performance of One Direction’s ‘Stockholm Syndrome.’ ...

Harry Styles was spotted in the audience of Niall Horan’s The Show Live on Tour concert at Co-op Live in Manchester, England on Tuesday, Aug. 27.

In one video filmed by a fan at Horan's Co-op Live performance, Styles - sporting a scruffy mustache and yellow cardigan - enthusiastically rocks back and forth as the The Voice alum sings 1D's ...