United Kingdom, June 23 -- Beyonce has explained why Jay Z ditched his dreadlocks after eight years.

The pop superstar has shared a video on YouTube in which she details her rapper husband's style transformation as he swapped his longtime hairstyle for a new afro, which he debuted on stage at a festival show in Philadelphia, Pennsylvania in May with the singer revealing Jay wanted to honour his father by embracing the same style he used to wear.

Beyonce said: "Everyone wants to know the details of Jay's hair transformation. Jay told me a few months ago that he was planning on combing out his locks for his Philly show with The Roots.

"He wanted to do this in honour of his father. His name was Adnis Reeves. And his favourite sports team ...