Union J's Jaymi Hensley believes Zayn Malik is a gamechanger.

The former One Direction star released his debut solo single 'Pillowtalk' today (January 29).

The R&B-pop tune has gone down well with fans and critics alike.

It seems Union J's Hensley is a fan of the track too, writing on Twitter:

"Zayn just changed everything."

Malik released an accompanying promo video for the song today too.

It features a steamy cameo from reported girlfriend and model Gigi Hadid.

The singer will release his first album 'Mind of Mine' on March 25.

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