Since Zayn Malik’s dramatic exit from boy band One Direction, speculation has been rife as to who could replace him.

It seems the answer may be 25-year-old Northern Irish pro golfer Rory McIlroy.

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McIlroy (left) and Horan in Augusta, Georgia. Photo: Getty

According to band member Niall Horan, McIlroy will join the band on stage at a September gig in Massachusetts.

McIlroy’s appearance is part of a deal he made with Horan after Horan acted as his caddy during the par-three contest in Augusta last week.

“That was part of the deal,” Horan told the Golf Channel.

“If I went on the bag with him, he would come on stage and sing with us.”

“He’s playing in the Deutche in Boston at the end of the summer and we’re playing in the Gillette Stadium in Foxboro in the same week, so we going to get him up.

“He said if he’s allowed pick the song then he’s going to do it.”

But does McIlroy have the necessary vocal chops?

“No,” Horan said. “Apparently he’s terrible.”

Horan and McIlroy are close friends and struck up the caddy deal back in December when they met up in Australia.

“If you’re available Wednesday afternoon and you want to carry my bag for nine holes, you’re more than welcome,” McIlroy reportedly said to Horan when the singer revealed he was attending the Masters.