Styles was sported wearing a smart black blazer and a striped T-shirt, as he posed for photographs alongside his 22-year-old sibling, who was flaunting her cap and gown, reports contactmusic.com.
He uploaded pictures to his Instagram with the caption: "My sister graduated. She's all clever and that."
The university also tweeted several photos of their celebrity guest at the ceremony, writing: "A special guest attended today's graduation ceremony to see his sister collect her degree! Welcome Harry Styles."
--IANS (Posted on 15-11-2013)