Singer Harry Styles took to his Twitter page earlier today (July 9) to congratulate his sister Gemma on finishing her university degree with an impressive grade.

Writing on the social networking site, the One Direction heartthrob posted a message that read: "Well done to my annoyingly clever sister @GemmaAnneStyles on completing her education! I'm so proud of you. xx"

Gemma also updated her own account and shared a photograph of two champagne glasses toasting the occasion, which she accompanied with the caption: "Any excuse. Got a first!"

Meanwhile, Styles and bandmate Liam Payne have just announced details of a new charity competition that will see one lucky winner and a friend enjoy a night out in London with them. The lads partnered with cancer charity Trekstock and fans have the chance to win the exciting prize by donating to the fantastic cause.